diff --git a/src/fastfetch.c b/src/fastfetch.c
index f37d14bd5..f60ae9ad3 100644
--- a/src/fastfetch.c
+++ b/src/fastfetch.c
@@ -267,7 +267,7 @@ static void listConfigPaths(void)
     FF_LIST_FOR_EACH(FFstrbuf, folder, instance.state.platform.configDirs)
     {
         bool exists = false;
-        uint32_t length = folder->length + sizeof("fastfetch");
+        uint32_t length = folder->length + (uint32_t) strlen("fastfetch") + 1 /* trailing slash */;
         ffStrbufAppendS(folder, "fastfetch/config.jsonc");
         exists = ffPathExists(folder->chars, FF_PATHTYPE_FILE);
         if (!exists)