diff --git a/SOURCES/kdumpctl b/SOURCES/kdumpctl
index d4b05de..6f0b744 100755
--- a/SOURCES/kdumpctl
+++ b/SOURCES/kdumpctl
@@ -1139,7 +1139,7 @@ check_fence_kdump_config()
 			return 1
 		fi
 		# node can be ipaddr
-		echo $ipaddrs | grep $node > /dev/null
+		echo "$ipaddrs " | grep "$node " > /dev/null
 		if [ $? -eq 0 ]; then
 			echo "Option fence_kdump_nodes cannot contain $node"
 			return 1
diff --git a/SPECS/kexec-tools.spec b/SPECS/kexec-tools.spec
index bd20dad..f327e0f 100644
--- a/SPECS/kexec-tools.spec
+++ b/SPECS/kexec-tools.spec
@@ -1,6 +1,6 @@
 Name: kexec-tools
 Version: 2.0.15
-Release: 51%{?dist}.1
+Release: 51%{?dist}.2
 License: GPLv2
 Group: Applications/System
 Summary: The kexec/kdump userspace component.
@@ -445,6 +445,8 @@ done
 %doc
 
 %changelog
+* Fri Mar 5 2021 Pingfan Liu <piliu@redhat.com> 2.0.15-51.2
+- kdumpctl: fix a variable expansion in check_fence_kdump_config()
 
 * Mon Sep 7 2020 Bhupesh Sharma <bhsharma@redhat.com> 2.0.15-51.1
 - makedumpfile/sadump: Fix a KASLR problem of sadump while kdump is working