diff --git a/ext/session/mod_files.c b/ext/session/mod_files.c
index 8f2edca386c..de6cccce4ea 100644
--- a/ext/session/mod_files.c
+++ b/ext/session/mod_files.c
@@ -175,6 +175,7 @@ static void ps_files_open(ps_files *data, const char *key)
 				data->basedir = NULL;
 				data->basedir_len = 0;
 			}
+			efree(data);
 			php_error_docref(NULL, E_WARNING, "The session id is too long or contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,'");
 			return;
 		}