diff --git a/Core/symbol_hash.c b/Core/symbol_hash.c
index 7f5cbe26..5af04f09 100644
--- a/Core/symbol_hash.c
+++ b/Core/symbol_hash.c
@@ -56,7 +56,7 @@ GB_symbol_map_t *GB_map_alloc(void)
 
 void GB_map_free(GB_symbol_map_t *map)
 {
-    for (unsigned char i = 0; i < map->n_symbols; i++) {
+    for (unsigned i = 0; i < map->n_symbols; i++) {
         free(map->symbols[i].name);
     }