diff --git a/ima-add-sigs.sh b/ima-add-sigs.sh
index 890eacb..6be5c48 100755
--- a/ima-add-sigs.sh
+++ b/ima-add-sigs.sh
@@ -4,7 +4,7 @@
 usage() {
 	echo "Add IMA signatures to installed packages."
 	cat <<EOF
-usage: $0 [--package=PACKAGE_NAME|ALL] [--ima-cert=IMA_CERT_PATH] [--reinstall_threshold=NUM]
+usage: $0 [--package=PACKAGE_NAME|ALL] [--ima_cert=IMA_CERT_PATH] [--reinstall_threshold=NUM]
 
        --package
        By default, it will add IMA sigantures to all installed package files.
@@ -19,7 +19,7 @@ usage: $0 [--package=PACKAGE_NAME|ALL] [--ima-cert=IMA_CERT_PATH] [--reinstall_t
        this case by checking if there are >reinstall_threshold package missing
        IMA signatures.
 
-       --ima-cert
+       --ima_cert
        With the signing IMA cert path specified, it will also try to verify the
        added IMA signature.
 
@@ -132,7 +132,7 @@ if [[ -z $reinstall_threshold ]]; then
 	fi
 fi
 
-unsigned_packages_in_rpm_db=$(rpm -q --queryformat "%{SIGPGP:pgpsig}\n" "$package" | grep "^(none)$" | wc -l)
+unsigned_packages_in_rpm_db=$(rpm -q --queryformat "%{SIGPGP:pgpsig}\n" "$package" | grep -c "^(none)$")
 
 if [[ $unsigned_packages_in_rpm_db -ge $reinstall_threshold ]]; then
 	add_by_reinstall