diff --git a/src/algo_utils.c b/src/algo_utils.c
index 6cad14b..02ce087 100644
--- a/src/algo_utils.c
+++ b/src/algo_utils.c
@@ -105,7 +105,7 @@ void mv_buffer_rtow(struct algo_ctx* app_ctx, struct evt_core_fdinfo* from, stru
   // 1. We get the packet buffer
   bp = g_hash_table_lookup (app_ctx->used_buffer, &from->fd);
   if (bp == NULL) {
-    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s", from->fd, from->url);
+    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s in rtow\n", from->fd, from->url);
     exit(EXIT_FAILURE);
   }
 
@@ -127,7 +127,7 @@ void mv_buffer_rtof(struct algo_ctx* app_ctx, struct evt_core_fdinfo* from) {
   // 1. We get the packet buffer
   bp = g_hash_table_lookup (app_ctx->used_buffer, &from->fd);
   if (bp == NULL) {
-    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s", from->fd, from->url);
+    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s in rtof\n", from->fd, from->url);
   }
   g_hash_table_remove(app_ctx->used_buffer, &(from->fd));
 
@@ -137,7 +137,7 @@ void mv_buffer_rtof(struct algo_ctx* app_ctx, struct evt_core_fdinfo* from) {
 void mv_buffer_wtof(struct algo_ctx* app_ctx, struct evt_core_fdinfo* fdinfo) {
   struct buffer_packet* bp = g_hash_table_lookup (app_ctx->used_buffer, &(fdinfo->fd));
   if (bp == NULL) {
-    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s", fdinfo->fd, fdinfo->url);
+    fprintf(stderr, "Unable to find a buffer for fd=%d url=%s in wtof\n", fdinfo->fd, fdinfo->url);
   }
   g_hash_table_remove(app_ctx->used_buffer, &(fdinfo->fd));
 
@@ -166,7 +166,7 @@ void mv_buffer_atow(struct algo_ctx* app_ctx, void* from, struct evt_core_fdinfo
   // 1. We get the buffer
   bp = g_hash_table_lookup (app_ctx->application_waiting, from);
   if (bp == NULL) {
-    fprintf(stderr, "Unable to find this application buffer\n");
+    fprintf(stderr, "Unable to find this application buffer in atow for %s\n", to->url);
     exit(EXIT_FAILURE);
   }
 
@@ -188,7 +188,7 @@ void mv_buffer_atof(struct algo_ctx* app_ctx, void* from) {
   // 1. Remove the buffer
   bp = g_hash_table_lookup (app_ctx->application_waiting, from);
   if (bp == NULL) {
-    fprintf(stderr, "Unable to find this application buffer\n");
+    fprintf(stderr, "Unable to find this application buffer in atof\n");
     exit(EXIT_FAILURE);
   }
   g_hash_table_remove (app_ctx->application_waiting, from);