diff --git a/source/arm9/config.c b/source/arm9/config.c
index 0de6ace..daf8ee1 100644
--- a/source/arm9/config.c
+++ b/source/arm9/config.c
@@ -177,6 +177,9 @@
 
 bool writeConfigFile()
 {
+	if(!filebuf)
+		goto fail;
+
 	const u32 fileSize = strlen(filebuf);
 	unsigned int bytesWritten;