1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_execute.c b/src/sp_execute.c
index 6345da8..45a4ae6 100644
--- a/src/sp_execute.c
+++ b/src/sp_execute.c
@@ -77,7 +77,7 @@ execute:
 static int sp_stream_open(const char *filename, zend_file_handle *handle) {
   zend_execute_data const * const data = EG(current_execute_data);
 
-  if ((NULL == data) || (NULL == data->opline)) {
+  if ((NULL == data) || (NULL == data->opline) || (data->func->type != ZEND_USER_FUNCTION)) {
     goto end;
   }