diff --git a/tests/integration/kubernetes/k8s-confidential-attestation.bats b/tests/integration/kubernetes/k8s-confidential-attestation.bats
index 8540e6ac74..47720ae9eb 100644
--- a/tests/integration/kubernetes/k8s-confidential-attestation.bats
+++ b/tests/integration/kubernetes/k8s-confidential-attestation.bats
@@ -103,7 +103,7 @@ teardown() {
 	[ -n "${pod_name:-}" ] && kubectl describe "pod/${pod_name}" || true
 	[ -n "${pod_config_dir:-}" ] && kubectl delete -f "${K8S_TEST_YAML}" || true
 
-	if [[ -n "${node_start_time}:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
+	if [[ -n "${node_start_time:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
 		echo "DEBUG: system logs of node '$node' since test start time ($node_start_time)"
 		print_node_journal "$node" "kata" --since "$node_start_time" || true
 	fi
diff --git a/tests/integration/kubernetes/k8s-guest-pull-image-encrypted.bats b/tests/integration/kubernetes/k8s-guest-pull-image-encrypted.bats
index 54868adeb3..92fee83ef2 100644
--- a/tests/integration/kubernetes/k8s-guest-pull-image-encrypted.bats
+++ b/tests/integration/kubernetes/k8s-guest-pull-image-encrypted.bats
@@ -131,7 +131,7 @@ teardown() {
     kubectl describe pods
     k8s_delete_all_pods_if_any_exists || true
 
-    if [[ -n "${node_start_time}:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
+    if [[ -n "${node_start_time:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
         echo "DEBUG: system logs of node '$node' since test start time ($node_start_time)"
         print_node_journal "$node" "kata" --since "$node_start_time" || true
     fi
diff --git a/tests/integration/kubernetes/k8s-liveness-probes.bats b/tests/integration/kubernetes/k8s-liveness-probes.bats
index e0851af504..7540f8422d 100644
--- a/tests/integration/kubernetes/k8s-liveness-probes.bats
+++ b/tests/integration/kubernetes/k8s-liveness-probes.bats
@@ -99,7 +99,7 @@ teardown() {
 
 	rm -f "${yaml_file}"
 
-	if [[ -n "${node_start_time}:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
+	if [[ -n "${node_start_time:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
 		echo "DEBUG: system logs of node '$node' since test start time ($node_start_time)"
 		print_node_journal "$node" "kata" --since "$node_start_time" || true
 	fi
diff --git a/tests/integration/kubernetes/k8s-sealed-secret.bats b/tests/integration/kubernetes/k8s-sealed-secret.bats
index 749e53ec0d..36ac18b030 100644
--- a/tests/integration/kubernetes/k8s-sealed-secret.bats
+++ b/tests/integration/kubernetes/k8s-sealed-secret.bats
@@ -114,7 +114,7 @@ teardown() {
 	kubectl delete secret sealed-secret --ignore-not-found
 	kubectl delete secret not-sealed-secret --ignore-not-found
 
-	if [[ -n "${node_start_time}:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
+	if [[ -n "${node_start_time:-}" && -z "$BATS_TEST_COMPLETED" ]]; then
 		echo "DEBUG: system logs of node '$node' since test start time ($node_start_time)"
 		print_node_journal "$node" "kata" --since "$node_start_time" || true
 	fi