diff --git a/usr/libexec/security-misc/pam-info b/usr/libexec/security-misc/pam-info
index a42effa..6d772ca 100755
--- a/usr/libexec/security-misc/pam-info
+++ b/usr/libexec/security-misc/pam-info
@@ -111,6 +111,7 @@ if [ "$PAM_USER" = 'sysmaint' ]; then
    fi
 fi
 
+kernel_cmdline=""
 if test -f /proc/cmdline; then
    kernel_cmdline="$(cat -- /proc/cmdline)"
 fi