diff --git a/src/Uno.CodeGen/ImmutableGenerator.cs b/src/Uno.CodeGen/ImmutableGenerator.cs
index 07bb515..7794d75 100644
--- a/src/Uno.CodeGen/ImmutableGenerator.cs
+++ b/src/Uno.CodeGen/ImmutableGenerator.cs
@@ -553,7 +553,7 @@ return ({symbolNameWithGenerics})(_cachedResult = _original);");
 							builder.AppendLine(
 								$@"private bool _isNone;
 
-public static Builder FromOption(Uno.Option<{symbolNameWithGenerics}> original)
+public static Builder FromOption(global::Uno.Option<{symbolNameWithGenerics}> original)
 {{
 	if(original.MatchSome(out var o))
 	{{