diff --git a/hscript/Checker.hx b/hscript/Checker.hx
index c7414b2..9999b21 100644
--- a/hscript/Checker.hx
+++ b/hscript/Checker.hx
@@ -422,6 +422,9 @@ class Checker {
 			return makeType(t,e);
 		case CTOpt(t):
 			return makeType(t,e);
+		case CTExpr(_):
+			error("Unsupported expr type parameter", e);
+			return null;
 		}
 	}
 
diff --git a/hscript/Interp.hx b/hscript/Interp.hx
index 56da8fb..f74e0ef 100644
--- a/hscript/Interp.hx
+++ b/hscript/Interp.hx
@@ -1360,7 +1360,7 @@ class Interp {
 				if (scriptObject.__superClass is CustomClass)
 					return cast(scriptObject.__superClass, CustomClass).call(f, args, true);
 				else
-					return return UnsafeReflect.callMethodUnsafe(scriptObject.__superClass, UnsafeReflect.field(scriptObject.__superClass, '_HX_SUPER__$f'), args);
+					return UnsafeReflect.callMethodUnsafe(scriptObject.__superClass, UnsafeReflect.field(scriptObject.__superClass, '_HX_SUPER__$f'), args);
 			}
 		}
 
diff --git a/hscript/Macro.hx b/hscript/Macro.hx
index c57ee42..708f507 100644
--- a/hscript/Macro.hx
+++ b/hscript/Macro.hx
@@ -127,6 +127,8 @@ class Macro {
 				tf.push( { name : f.name, meta : meta, doc : null, access : [], kind : FVar(convertType(f.t), null), pos : p } );
 			}
 			TAnonymous(tf);
+		case CTExpr(_):
+			throw "assert";
 		};
 	}