diff --git a/src/compiler/abi/c_abi.c b/src/compiler/abi/c_abi.c
index fc721eced..ba1795dc4 100644
--- a/src/compiler/abi/c_abi.c
+++ b/src/compiler/abi/c_abi.c
@@ -18,8 +18,6 @@ ABIArgInfo *abi_arg_ignore(void)
 	return &info;
 }
 
-
-
 bool abi_type_is_integer(AbiType type)
 {
 	return !abi_type_is_type(type) || type_is_integer(type.type);
diff --git a/src/compiler/sema_casts.c b/src/compiler/sema_casts.c
index 66f22efd4..74ae01e00 100644
--- a/src/compiler/sema_casts.c
+++ b/src/compiler/sema_casts.c
@@ -306,6 +306,7 @@ static bool cast_if_valid(SemaContext *context, Expr *expr, Type *to_type, bool
 			.expr = expr,
 			.context = context
 	};
+	if (!sema_resolve_type_decl(context, to)) return false;
 	if (!cast_is_allowed(&cc, is_explicit, false))
 	{
 		return false;
diff --git a/src/compiler/sema_expr.c b/src/compiler/sema_expr.c
index a6063d82e..795dd4ff8 100644
--- a/src/compiler/sema_expr.c
+++ b/src/compiler/sema_expr.c
@@ -1332,21 +1332,17 @@ INLINE bool sema_call_expand_arguments(SemaContext *context, CalledDecl *callee,
 				sema_error_at_after(args[num_args - 1]->span, "Expected '.%s = ...' after this argument.", param->name);
 				return false;
 			}
-			if (num_args)
+			if (num_args > (callee->struct_var ? 1 : 0))
 			{
 				unsigned needed = func_param_count - num_args;
-				SEMA_ERROR(args[num_args - 1],
-						   "Expected %d more %s after this one, did you forget %s?",
-						   needed, needed == 1 ? "argument" : "arguments", needed == 1 ? "it" : "them");
+				RETURN_SEMA_ERROR(args[num_args - 1],
+				                  "Expected %d more %s after this one, did you forget %s?",
+				                  needed, needed == 1 ? "argument" : "arguments", needed == 1 ? "it" : "them");
 			}
-			else
-			{
-				SEMA_ERROR(call, "'%s' expects %d parameters, but none was provided.", callee->name, func_param_count);
-			}
-			return false;
+			RETURN_SEMA_ERROR(call, "'%s' expects %d parameter(s), but none was provided.",
+							  callee->name, callee->struct_var ? func_param_count - 1 : func_param_count);
 		}
-		SEMA_ERROR(call, "The parameter '%s' must be set, did you forget it?", param->name);
-		return false;
+		RETURN_SEMA_ERROR(call, "The parameter '%s' must be set, did you forget it?", param->name);
 	}
 	call->call_expr.arguments = actual_args;
 	return true;
diff --git a/src/version.h b/src/version.h
index f02d05667..71391b196 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define COMPILER_VERSION "0.4.659"
\ No newline at end of file
+#define COMPILER_VERSION "0.4.660"
\ No newline at end of file