diff --git a/dotnet/src/Decryptor.cs b/dotnet/src/Decryptor.cs
index 7ab3fa5f..75a3f98b 100644
--- a/dotnet/src/Decryptor.cs
+++ b/dotnet/src/Decryptor.cs
@@ -103,7 +103,7 @@ namespace Microsoft.Research.SEAL
         /// </remarks>
         /// <param name="encrypted">The ciphertext</param>
         /// <exception cref="ArgumentNullException">if encrypted is null</exception>
-        /// <exception cref="ArgumentException">if the scheme is not BFV or BGV</exception>
+        /// <exception cref="InvalidOperationException">if the scheme is not BFV or BGV</exception>
         /// <exception cref="ArgumentException">if encrypted is not valid for the encryption parameters</exception>
         /// <exception cref="ArgumentException">if encrypted is in NTT form</exception>
         /// <exception cref="ArgumentException">if pool is uninitialized</exception>
diff --git a/native/src/seal/c/decryptor.cpp b/native/src/seal/c/decryptor.cpp
index 18ec8484..257784df 100644
--- a/native/src/seal/c/decryptor.cpp
+++ b/native/src/seal/c/decryptor.cpp
@@ -78,4 +78,8 @@ SEAL_C_FUNC Decryptor_InvariantNoiseBudget(void *thisptr, void *encrypted, int *
     {
         return E_INVALIDARG;
     }
+    catch (const logic_error &)
+    {
+        return COR_E_INVALIDOPERATION;
+    }
 }
diff --git a/native/src/seal/decryptor.h b/native/src/seal/decryptor.h
index d77d2979..90c73573 100644
--- a/native/src/seal/decryptor.h
+++ b/native/src/seal/decryptor.h
@@ -82,9 +82,9 @@ namespace seal
         @par Invariant Noise Budget
         The invariant noise polynomial of a ciphertext is a rational coefficient
         polynomial, such that a ciphertext decrypts correctly as long as the
-        coefficients of the invariantnoise polynomial are of absolute value less
+        coefficients of the invariant noise polynomial are of absolute value less
         than 1/2. Thus, we call the infinity-norm of the invariant noise polynomial
-        the invariant noise, and for correct decryption requireit to be less than
+        the invariant noise, and for correct decryption require it to be less than
         1/2. If v denotes the invariant noise, we define the invariant noise budget
         as -log2(2v). Thus, the invariant noise budget starts from some initial
         value, which depends on the encryption parameters, and decreases when
@@ -92,7 +92,7 @@ namespace seal
         becomes too noisy to decrypt correctly.
 
         @param[in] encrypted The ciphertext
-        @throws std::invalid_argument if the scheme is not BFV/BGV
+        @throws std::logic_error if the scheme is not BFV/BGV
         @throws std::invalid_argument if encrypted is not valid for the encryption
         parameters
         @throws std::invalid_argument if encrypted is in NTT form