diff --git a/build-rpm.sh b/build-rpm.sh
index d3b4b8d..16dac17 100755
--- a/build-rpm.sh
+++ b/build-rpm.sh
@@ -266,7 +266,7 @@ fi
 
 sudo touch -d "23 hours ago" $config_dir/default.cfg
 
-spec_name=`ls -1 $build_package | grep '.spec$'`
+spec_name=`ls -1 $build_package | grep '\.spec$'`
 echo '--> Build src.rpm'
 try_rebuild=true
 retry=0
@@ -384,7 +384,7 @@ find_spec() {
 [ "$rerun_tests" = 'true' ] && return 0
 
 # Check count of *.spec files (should be one)
-x=$(ls -1 | grep -c '.spec$' | sed 's/^ *//' | sed 's/ *$//')
+x=$(ls -1 | grep -c '\.spec$' | sed 's/^ *//' | sed 's/ *$//')
 if [ "$x" -eq "0" ] ; then
     echo '--> There are no spec files in repository.'
     exit 1