diff --git a/core/object/method_bind.h b/core/object/method_bind.h
index e06eb1f8fae..a07824a0dca 100644
--- a/core/object/method_bind.h
+++ b/core/object/method_bind.h
@@ -90,7 +90,7 @@ public:
 	}
 
 	_FORCE_INLINE_ Variant::Type get_argument_type(int p_argument) const {
-		ERR_FAIL_COND_V(p_argument < -1 || p_argument > argument_count, Variant::NIL);
+		ERR_FAIL_COND_V(p_argument < -1 || p_argument >= argument_count, Variant::NIL);
 		return argument_types[p_argument + 1];
 	}