diff --git a/u9fs.c b/u9fs.c
index cd30ea2..0b5273c 100644
--- a/u9fs.c
+++ b/u9fs.c
@@ -169,8 +169,8 @@ char isfrog[256]={
 	/*BKS*/	1, 1, 1, 1, 1, 1, 1, 1,
 	/*DLE*/	1, 1, 1, 1, 1, 1, 1, 1,
 	/*CAN*/	1, 1, 1, 1, 1, 1, 1, 1,
-	['/']	1,
-	[0x7f]	1,
+	['/'] =	1,
+	[0x7f] =	1,
 };
 
 char*