diff --git a/include/tests_kernel b/include/tests_kernel
index bba8080f..201d803e 100644
--- a/include/tests_kernel
+++ b/include/tests_kernel
@@ -692,7 +692,7 @@
                     else
                         # Match on items like /boot/vm5.3.7 or /boot/vmlinuz-5.3.7-1-default. Sort based on versions (-v) and then find the last item
                         # Note: ignore a rescue kernel (e.g. CentOS)
-                        FOUND_VMLINUZ=$(${LSBINARY} -v ${ROOTDIR}boot/vm[l0-9]* 2> /dev/null | ${GREPBINARY} -v '\-rescue\-' | ${TAILBINARY} -1)
+                        FOUND_VMLINUZ=$(${LSBINARY} -v ${ROOTDIR}boot/vm[l0-9]* 2> /dev/null | ${GREPBINARY} -v '\-rescue-' | ${TAILBINARY} -1)
                         LogText "Result: found ${FOUND_VMLINUZ}"
                     fi