diff --git a/Shorewall/install.sh b/Shorewall/install.sh
index 2dd62d8fe..988ecd11f 100755
--- a/Shorewall/install.sh
+++ b/Shorewall/install.sh
@@ -682,12 +682,12 @@ fi
 
 rm -f *.gz
 
-for file in manpages/*.5; do
+for f in manpages/*.5; do
     gzip manpages/$f
     install_file -D manpages/${f}.gz ${PREFIX}/usr/share/man/man5/${f}.gz
 done
 
-for file in manpages/*.8; do
+for f in manpages/*.8; do
     gzip manpages/$f
     install_file -D manpages/${f}.gz ${PREFIX}/usr/share/man/man8/${f}.gz
 done