diff --git a/src/System.Web.OData/OData/Routing/UnboundFunctionPathSegmentTemplate.cs b/src/System.Web.OData/OData/Routing/UnboundFunctionPathSegmentTemplate.cs
index 34490336..6f321d08 100644
--- a/src/System.Web.OData/OData/Routing/UnboundFunctionPathSegmentTemplate.cs
+++ b/src/System.Web.OData/OData/Routing/UnboundFunctionPathSegmentTemplate.cs
@@ -9,6 +9,8 @@ namespace System.Web.Http.OData.Routing
     /// </summary>
     public class UnboundFunctionPathSegmentTemplate : ODataPathSegmentTemplate
     {
+        private string _functionName;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="UnboundFunctionPathSegmentTemplate"/> class.
         /// </summary>
@@ -20,6 +22,7 @@ namespace System.Web.Http.OData.Routing
                 throw Error.ArgumentNull("function");
             }
 
+            _functionName = function.FunctionName;
             ParameterMappings = KeyValuePathSegmentTemplate.BuildParameterMappings(function.Values, function.ToString());
         }
 
@@ -35,7 +38,10 @@ namespace System.Web.Http.OData.Routing
             if (pathSegment.SegmentKind == ODataSegmentKinds.UnboundFunction)
             {
                 UnboundFunctionPathSegment functionSegment = (UnboundFunctionPathSegment)pathSegment;
-                return KeyValuePathSegmentTemplate.TryMatch(ParameterMappings, functionSegment.Values, values);
+                if (_functionName == functionSegment.FunctionName)
+                {
+                    return KeyValuePathSegmentTemplate.TryMatch(ParameterMappings, functionSegment.Values, values);
+                }
             }
 
             return false;
diff --git a/test/System.Web.OData.Test/OData/Routing/DefaultODataPathHandlerTest.cs b/test/System.Web.OData.Test/OData/Routing/DefaultODataPathHandlerTest.cs
index 8c6d7793..efa4dc21 100644
--- a/test/System.Web.OData.Test/OData/Routing/DefaultODataPathHandlerTest.cs
+++ b/test/System.Web.OData.Test/OData/Routing/DefaultODataPathHandlerTest.cs
@@ -940,6 +940,30 @@ namespace System.Web.Http.OData.Routing
             Assert.Equal(keyValues.OrderBy(k => k), routeData.Select(d => d.Key + ":" + d.Value).OrderBy(d => d));
         }
 
+        [Theory]
+        [InlineData("Customer")] // Customer is not a correct entity set in the model
+        [InlineData("UnknowFunction(foo={newFoo})")] // UnknowFunction is not a function name in the model
+        public void ParseTemplate_ThrowODataException_InvalidODataPathSegmentTemplate(string template)
+        {
+            // Arrange
+            CustomersModelWithInheritance model = new CustomersModelWithInheritance();
+
+            // Act & Assert
+            Assert.Throws<ODataException>(() => _parser.ParseTemplate(model.Model, template),
+                "The given OData path template '" + template + "' is invalid.");
+        }
+
+        [Fact]
+        public void ParseTemplate_ThrowODataException_UnResolvedPathSegment()
+        {
+            // Arrange
+            CustomersModelWithInheritance model = new CustomersModelWithInheritance();
+
+            // Act & Assert
+            Assert.Throws<ODataException>(() => _parser.ParseTemplate(model.Model, "Customers(ID={key})/Order"),
+                "Found an unresolved path segment 'Order' in the OData path template 'Customers(ID={key})/Order'.");
+        }
+
         private static void AssertTypeMatchesExpectedType(string odataPath, string expectedSetName, string expectedTypeName, bool isCollection)
         {
             // Arrange
diff --git a/test/System.Web.OData.Test/OData/Routing/UnboundFunctionPathSegmentTemplateTest.cs b/test/System.Web.OData.Test/OData/Routing/UnboundFunctionPathSegmentTemplateTest.cs
index 2e08e7ce..861318fd 100644
--- a/test/System.Web.OData.Test/OData/Routing/UnboundFunctionPathSegmentTemplateTest.cs
+++ b/test/System.Web.OData.Test/OData/Routing/UnboundFunctionPathSegmentTemplateTest.cs
@@ -31,7 +31,7 @@ namespace System.Web.Http.OData.Routing
                     "Function",
                     new EdmEntityTypeReference(returnType, isNullable: false)));
 
-            Dictionary<string, string> parameterMappings = new Dictionary<string, string>()
+            Dictionary<string, string> parameterMappings = new Dictionary<string, string>
             {
                 { "Parameter1", "{param1}" },
                 { "Parameter2", "{param2}" }
@@ -60,6 +60,44 @@ namespace System.Web.Http.OData.Routing
                     "Function",
                     new EdmEntityTypeReference(returnType, isNullable: false)));
 
+            Dictionary<string, string> parameterValues = new Dictionary<string, string>
+            {
+                { "Parameter1", "1" },
+                { "Parameter2", "2" }
+            };
+
+            Dictionary<string, string> parameterMappings = new Dictionary<string, string>
+            {
+                { "Parameter1", "{param1}" },
+                { "Parameter2", "{param2}" }
+            };
+
+            UnboundFunctionPathSegment segment = new UnboundFunctionPathSegment(function, model, parameterValues);
+            UnboundFunctionPathSegmentTemplate template = new UnboundFunctionPathSegmentTemplate(
+                new UnboundFunctionPathSegment(function, model, parameterMappings));
+
+            // Act
+            Dictionary<string, object> values = new Dictionary<string,object>();
+            bool result = template.TryMatch(segment, values);
+
+            // Assert
+            Assert.True(result);
+            Assert.Equal(2, values.Count);
+            Assert.Equal("1", values["param1"]);
+            Assert.Equal("2", values["param2"]);
+        }
+
+        [Fact]
+        public void TryMatch_ReturnsFalse_IfDifferentUnboundFunctionWithSameParamerters()
+        {
+            // Arrange
+            IEdmModel model = new Mock<IEdmModel>().Object;
+            IEdmEntityType returnType = new Mock<IEdmEntityType>().Object;
+            EdmEntityContainer container = new EdmEntityContainer("NS", "Container");
+            EdmFunction function = new EdmFunction("NS", "Function", new EdmEntityTypeReference(returnType, isNullable: false));
+            EdmFunctionImport functionImport1 = new EdmFunctionImport(container,"FunctionImport1", function);
+            EdmFunctionImport functionImport2 = new EdmFunctionImport(container,"FunctionImport2", function);
+
             Dictionary<string, string> parameterValues = new Dictionary<string, string>()
             {
                 { "Parameter1", "1" },
@@ -72,19 +110,16 @@ namespace System.Web.Http.OData.Routing
                 { "Parameter2", "{param2}" }
             };
 
-            UnboundFunctionPathSegment segment = new UnboundFunctionPathSegment(function, model, parameterValues: parameterValues);
-            UnboundFunctionPathSegmentTemplate template = new UnboundFunctionPathSegmentTemplate(
-                new UnboundFunctionPathSegment(function, model, parameterValues: parameterMappings));
+            UnboundFunctionPathSegment segment = new UnboundFunctionPathSegment(functionImport1, model, parameterValues);
+            var template = new UnboundFunctionPathSegmentTemplate(
+                new UnboundFunctionPathSegment(functionImport2, model, parameterMappings));
+            Dictionary<string, object> values = new Dictionary<string, object>();
 
             // Act
-            Dictionary<string, object> values = new Dictionary<string,object>();
             bool result = template.TryMatch(segment, values);
 
             // Assert
-            Assert.True(result);
-            Assert.Equal(2, values.Count);
-            Assert.Equal("1", values["param1"]);
-            Assert.Equal("2", values["param2"]);
+            Assert.False(result);
         }
     }
 }