diff --git a/autogen/scripts/wait-for-cluster.sh b/autogen/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/autogen/scripts/wait-for-cluster.sh
+++ b/autogen/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/modules/beta-private-cluster-update-variant/scripts/wait-for-cluster.sh b/modules/beta-private-cluster-update-variant/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/modules/beta-private-cluster-update-variant/scripts/wait-for-cluster.sh
+++ b/modules/beta-private-cluster-update-variant/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/modules/beta-private-cluster/scripts/wait-for-cluster.sh b/modules/beta-private-cluster/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/modules/beta-private-cluster/scripts/wait-for-cluster.sh
+++ b/modules/beta-private-cluster/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/modules/beta-public-cluster/scripts/wait-for-cluster.sh b/modules/beta-public-cluster/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/modules/beta-public-cluster/scripts/wait-for-cluster.sh
+++ b/modules/beta-public-cluster/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/modules/private-cluster-update-variant/scripts/wait-for-cluster.sh b/modules/private-cluster-update-variant/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/modules/private-cluster-update-variant/scripts/wait-for-cluster.sh
+++ b/modules/private-cluster-update-variant/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/modules/private-cluster/scripts/wait-for-cluster.sh b/modules/private-cluster/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/modules/private-cluster/scripts/wait-for-cluster.sh
+++ b/modules/private-cluster/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1
diff --git a/scripts/wait-for-cluster.sh b/scripts/wait-for-cluster.sh
index 37f0176ec7..7bf9919b8f 100755
--- a/scripts/wait-for-cluster.sh
+++ b/scripts/wait-for-cluster.sh
@@ -16,7 +16,7 @@
 set -e
 
 if [ -n "${GOOGLE_APPLICATION_CREDENTIALS}" ]; then
-    CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
+    export CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE=${GOOGLE_APPLICATION_CREDENTIALS}
 fi
 
 PROJECT=$1