diff --git a/src/Generator/Passes/CheckIgnoredDecls.cs b/src/Generator/Passes/CheckIgnoredDecls.cs
index 61ec8086..47763786 100644
--- a/src/Generator/Passes/CheckIgnoredDecls.cs
+++ b/src/Generator/Passes/CheckIgnoredDecls.cs
@@ -50,7 +50,9 @@ namespace CppSharp.Passes
             if (!base.VisitClassTemplateSpecializationDecl(specialization))
                 return false;
 
-            if (!Options.GenerateClassTemplates && !specialization.IsExplicitlyGenerated)
+            TypeMap typeMap;
+            if (!Options.GenerateClassTemplates && !specialization.IsExplicitlyGenerated &&
+                !Context.TypeMaps.FindTypeMap(specialization, out typeMap))
             {
                 specialization.ExplicitlyIgnore();
                 return false;
diff --git a/src/Generator/Types/Std/Stdlib.cs b/src/Generator/Types/Std/Stdlib.cs
index 55765e71..47c87047 100644
--- a/src/Generator/Types/Std/Stdlib.cs
+++ b/src/Generator/Types/Std/Stdlib.cs
@@ -392,7 +392,7 @@ namespace CppSharp.Types.Std
         }
     }
 
-    [TypeMap("std::ostream", GeneratorKind.CLI)]
+    [TypeMap("basic_ostream<char, char_traits<char>>", GeneratorKind.CLI)]
     public class OStream : TypeMap
     {
         public override string CLISignature(TypePrinterContext ctx)