diff --git a/perl-xCAT/xCAT/NodeRange.pm b/perl-xCAT/xCAT/NodeRange.pm
index e28bac035..46be7a395 100644
--- a/perl-xCAT/xCAT/NodeRange.pm
+++ b/perl-xCAT/xCAT/NodeRange.pm
@@ -4,6 +4,7 @@ use Text::Balanced qw/extract_bracketed/;
 require xCAT::Table;
 require Exporter;
 use strict;
+use xCAT::MsgUtils;
 
 #Perl implementation of noderange
 our @ISA       = qw(Exporter);
@@ -293,6 +294,9 @@ sub expandatom {
                     #my @grouplist = $grptab->getAllAttribs('groupname');
                 for my $row (@grplist) {
                     if ($row->{groupname} eq $atom) {
+                        my $rsp;
+                        $rsp->{data}->[0] = "Could not create an object named \'$atom\' of type 'node'. A definition for a group object with the same name already exists.";
+                        xCAT::MsgUtils->message("E", $rsp, $::callback);
                         return ();
                     }
                 }
diff --git a/xCAT-test/autotest/bundle/rhels_ppcle_daily.bundle b/xCAT-test/autotest/bundle/rhels_ppcle_daily.bundle
index a39991440..d1ef3de1e 100644
--- a/xCAT-test/autotest/bundle/rhels_ppcle_daily.bundle
+++ b/xCAT-test/autotest/bundle/rhels_ppcle_daily.bundle
@@ -151,6 +151,7 @@ mkdef_regex_nicsip
 mkdef_rhels73
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/bundle/rhels_x86_daily.bundle b/xCAT-test/autotest/bundle/rhels_x86_daily.bundle
index 608e862ee..e4f886992 100644
--- a/xCAT-test/autotest/bundle/rhels_x86_daily.bundle
+++ b/xCAT-test/autotest/bundle/rhels_x86_daily.bundle
@@ -151,6 +151,7 @@ mkdef_regex_nicsip
 mkdef_rhels73
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/bundle/sles_ppcle_daily.bundle b/xCAT-test/autotest/bundle/sles_ppcle_daily.bundle
index db5fb3832..dd1b0bad0 100644
--- a/xCAT-test/autotest/bundle/sles_ppcle_daily.bundle
+++ b/xCAT-test/autotest/bundle/sles_ppcle_daily.bundle
@@ -110,6 +110,7 @@ mkdef_regex_kvm
 mkdef_regex_nicsip
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/bundle/sles_x86_daily.bundle b/xCAT-test/autotest/bundle/sles_x86_daily.bundle
index 33c28f32a..dbe30b6e3 100644
--- a/xCAT-test/autotest/bundle/sles_x86_daily.bundle
+++ b/xCAT-test/autotest/bundle/sles_x86_daily.bundle
@@ -110,6 +110,7 @@ mkdef_regex_kvm
 mkdef_regex_nicsip
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/bundle/ubuntu_ppcle_daily.bundle b/xCAT-test/autotest/bundle/ubuntu_ppcle_daily.bundle
index b0182265c..41ed0bcc5 100644
--- a/xCAT-test/autotest/bundle/ubuntu_ppcle_daily.bundle
+++ b/xCAT-test/autotest/bundle/ubuntu_ppcle_daily.bundle
@@ -79,6 +79,7 @@ mkdef_regex_kvm
 mkdef_regex_nicsip
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/bundle/ubuntu_x86_daily.bundle b/xCAT-test/autotest/bundle/ubuntu_x86_daily.bundle
index 154c66025..c2f8b10d3 100644
--- a/xCAT-test/autotest/bundle/ubuntu_x86_daily.bundle
+++ b/xCAT-test/autotest/bundle/ubuntu_x86_daily.bundle
@@ -81,6 +81,7 @@ mkdef_regex_kvm
 mkdef_regex_nicsip
 mkdef_t_o_error
 mkdef_z
+mkdef_nodename_hit_groupname
 nodeadd_err_symbol
 nodeadd_h
 nodeadd_noderange
diff --git a/xCAT-test/autotest/testcase/mkdef/cases1 b/xCAT-test/autotest/testcase/mkdef/cases1
index 41c4b93c7..e0264c909 100644
--- a/xCAT-test/autotest/testcase/mkdef/cases1
+++ b/xCAT-test/autotest/testcase/mkdef/cases1
@@ -150,3 +150,24 @@ check:rc==0
 cmd:rmdef -t group -o xcattest_tmp_group_regex
 check:rc==0
 end
+
+start:mkdef_nodename_hit_groupname
+cmd:mkdef -t group -o tempgroup13579
+check:rc==0
+cmd:mkdef -t node -o tempgroup13579 groups=tempgroup13579
+check:rc==1
+check:output=~A definition for a group object with the same name already exists.
+check:output=~No object names were provided
+cmd:mkdef -t node -o tempgroup13579 groups=all
+check:rc==1
+check:output=~A definition for a group object with the same name already exists.
+check:output=~No object names were provided
+cmd:mkdef -t node -o tempnode02468,tempgroup13579 groups=tempgroup13579
+check:rc==1
+check:output=~A definition for a group object with the same name already exists.
+check:output=~1 object definitions have been created
+cmd:rmdef -t node -o tempnode02468
+check:rc==0
+cmd:rmdef -t group -o tempgroup13579
+check:rc==0
+end