diff --git a/src/publisher.c b/src/publisher.c
index b3945f5..ff3dded 100644
--- a/src/publisher.c
+++ b/src/publisher.c
@@ -76,7 +76,7 @@ int main(int argc, char *argv[]) {
   // Path of the break file (if found, publisher will stop publishing)
   char break_file[STATIC_LEN];
   strcat(break_file, "publisher_");
-  strcat(break_file, key);
+  strcat(break_file, client);
   strcat(break_file, "_break");
   printf("Create to following file to stop publishing (max wakeup latency will be %ds): %s\n",BREAK_DURATION,break_file);