diff --git a/ext/opcache/jit/zend_jit_helpers.c b/ext/opcache/jit/zend_jit_helpers.c
index 09e42cecfd8..27796368314 100644
--- a/ext/opcache/jit/zend_jit_helpers.c
+++ b/ext/opcache/jit/zend_jit_helpers.c
@@ -1241,6 +1241,7 @@ static void ZEND_FASTCALL zend_jit_assign_dim_helper(zval *object_ptr, zval *dim
 				ZVAL_UNDEF(result);
 			}
 		}
+		return;
 	} else if (EXPECTED(Z_TYPE_P(object_ptr) == IS_STRING) && EXPECTED(dim != NULL)) {
 		zend_assign_to_string_offset(object_ptr, dim, value, result);
 		return;