diff --git a/html_md.sh b/html_md.sh
index 972ae2eda73f7c5f03906c8c666d98ac25703a52..55f329c6ec0ff2b0585f09baf2a2066f4d88dd15 100755
--- a/html_md.sh
+++ b/html_md.sh
@@ -75,7 +75,7 @@ if [ "$1" = "-c" ]; then
 
 	(while read i; 
 	do		
-		if [ -f $i ];
+		if [ -f "$i" ];
 		then
 		   rm "$i";
 		fi