diff --git a/ICSharpCode.Decompiler/TypeSystem/DecompilerTypeSystem.cs b/ICSharpCode.Decompiler/TypeSystem/DecompilerTypeSystem.cs
index 25c06d8a9..a35ab391e 100644
--- a/ICSharpCode.Decompiler/TypeSystem/DecompilerTypeSystem.cs
+++ b/ICSharpCode.Decompiler/TypeSystem/DecompilerTypeSystem.cs
@@ -65,7 +65,7 @@ namespace ICSharpCode.Decompiler.TypeSystem
 			compilation = new SimpleCompilation(mainAssembly, referencedAssemblies);
 			// Primitive types are necessary to avoid assertions in ILReader.
 			// Fallback to MinimalCorlib to provide the primitive types.
-			if (compilation.FindType(KnownTypeCode.Void).Kind == TypeKind.Unknown || compilation.FindType(KnownTypeCode.Void).Kind == TypeKind.Unknown) {
+			if (compilation.FindType(KnownTypeCode.Void).Kind == TypeKind.Unknown || compilation.FindType(KnownTypeCode.Int32).Kind == TypeKind.Unknown) {
 				referencedAssemblies.Add(MinimalCorlib.Instance);
 				compilation = new SimpleCompilation(mainAssembly, referencedAssemblies);
 			}