diff --git a/usr/libexec/security-misc/mmap-rnd-bits b/usr/libexec/security-misc/mmap-rnd-bits
index 820dd15..0ed4d1a 100755
--- a/usr/libexec/security-misc/mmap-rnd-bits
+++ b/usr/libexec/security-misc/mmap-rnd-bits
@@ -15,7 +15,7 @@ BITS_MAX_DEFAULT=32
 COMPAT_BITS_MAX_DEFAULT=16
 
 ## Find the most recently modified Linux config file.
-if CONFIG=$(ls -1 -t /boot/config-* | head -n 1)
+if compgen -G "/boot/config-*" > /dev/null && CONFIG=$(ls -1 -t /boot/config-* | head -n 1)
 then
     ## Find the relevant config options.
     if ! BITS_MAX=$(grep "CONFIG_ARCH_MMAP_RND_BITS_MAX" "${CONFIG}" | cut -d "=" -f 2)