diff --git a/src/plugins/trigger/trigger-callback.c b/src/plugins/trigger/trigger-callback.c
index fab098fb1..9188cc1b3 100644
--- a/src/plugins/trigger/trigger-callback.c
+++ b/src/plugins/trigger/trigger-callback.c
@@ -357,6 +357,7 @@ trigger_callback_regex (struct t_trigger *trigger,
     const char *ptr_key, *ptr_value;
     int i, pointers_allocated;
 
+    value = NULL;
     pointers_allocated = 0;
 
     if (trigger->regex_count == 0)