diff --git a/fluent-package/yum/binstubs-test.sh b/fluent-package/yum/binstubs-test.sh
index 00ce32bc4..d039d2067 100755
--- a/fluent-package/yum/binstubs-test.sh
+++ b/fluent-package/yum/binstubs-test.sh
@@ -14,8 +14,8 @@ if [ "$CI" = "true" ]; then
    echo "::group::Setup binstubs test"
 fi
 
-distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f2)
-version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f4)
+distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f2)
+version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f4)
 
 ENABLE_UPGRADE_TEST=1
 case ${distribution} in
diff --git a/fluent-package/yum/confluent-test.sh b/fluent-package/yum/confluent-test.sh
index 690312d3d..8854b769c 100755
--- a/fluent-package/yum/confluent-test.sh
+++ b/fluent-package/yum/confluent-test.sh
@@ -13,8 +13,8 @@ fi
 # This means that column glitch exists.
 # So, we should remove before "o" character.
 
-distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f2)
-version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f4)
+distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f2)
+version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f4)
 
 case ${distribution} in
     amazon)
diff --git a/fluent-package/yum/install-test.sh b/fluent-package/yum/install-test.sh
index 0fed1ae5e..921f68386 100755
--- a/fluent-package/yum/install-test.sh
+++ b/fluent-package/yum/install-test.sh
@@ -11,8 +11,8 @@ set -exu
 # This means that column glitch exists.
 # So, we should remove before "o" character.
 
-distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f2)
-version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f4)
+distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f2)
+version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f4)
 
 ENABLE_UPGRADE_TEST=1
 case ${distribution} in
diff --git a/fluent-package/yum/serverspec-test.sh b/fluent-package/yum/serverspec-test.sh
index e5141022f..b40463273 100755
--- a/fluent-package/yum/serverspec-test.sh
+++ b/fluent-package/yum/serverspec-test.sh
@@ -15,8 +15,8 @@ if [ "$CI" = "true" ]; then
    echo "::group::Setup serverspec test"
 fi
 
-distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f2)
-version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f4)
+distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f2)
+version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($0, "o"))}' | cut -d: -f4)
 
 case ${distribution} in
   amazon)
diff --git a/fluent-package/yum/systemd-test/commonvar.sh b/fluent-package/yum/systemd-test/commonvar.sh
index e056a2e47..9a847fd8a 100755
--- a/fluent-package/yum/systemd-test/commonvar.sh
+++ b/fluent-package/yum/systemd-test/commonvar.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
-distribution=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f2)
-version=$(cat /etc/system-release-cpe | awk '{print substr($0, index($1, "o"))}' | cut -d: -f4)
+distribution=$(cat /etc/system-release-cpe | awk '{print substr($1, index($1, "o"))}' | cut -d: -f2)
+version=$(cat /etc/system-release-cpe | awk '{print substr($1, index($1, "o"))}' | cut -d: -f4)
 td_agent_version=4.5.2
 
 case $distribution in