diff --git a/tests/k8s.sh b/tests/k8s.sh
index bd8e6067..17afd149 100755
--- a/tests/k8s.sh
+++ b/tests/k8s.sh
@@ -32,38 +32,38 @@ function test_k8s {
   kubectl wait --for=condition=ready pod/gwctl
 
   # install iperf3 and jq
-  kubectl exec -it gwctl -- apk add iperf3 jq
+  kubectl exec -i gwctl -- apk add iperf3 jq
 
   # start iperf3 server
-  kubectl exec -it gwctl -- iperf3 -s -D -p 1234
+  kubectl exec -i gwctl -- iperf3 -s -D -p 1234
 
   # expose iperf3 server
   kubectl expose pod gwctl --name=foo --port=80 --target-port=1234
 
   # wait for API server to come up
-  kubectl exec -it gwctl -- timeout 30 sh -c 'until gwctl get peer; do sleep 0.1; done > /dev/null 2>&1'
+  kubectl exec -i gwctl -- timeout 30 sh -c 'until gwctl get peer; do sleep 0.1; done > /dev/null 2>&1'
 
   # export iperf server
-  kubectl exec -it gwctl -- gwctl create export --name foo --host foo --port 80
+  kubectl exec -i gwctl -- gwctl create export --name foo --host foo --port 80
 
   # import
-  kubectl exec -it gwctl -- gwctl create peer --host cl-dataplane --port 443 --name peer1
-  kubectl exec -it gwctl -- gwctl create import --name foo --host bla --port 9999
-  kubectl exec -it gwctl -- gwctl create binding --import foo --peer peer1
+  kubectl exec -i gwctl -- gwctl create peer --host cl-dataplane --port 443 --name peer1
+  kubectl exec -i gwctl -- gwctl create import --name foo --host bla --port 9999
+  kubectl exec -i gwctl -- gwctl create binding --import foo --peer peer1
 
   # get imported service port
-  PORT=$(kubectl exec -it gwctl -- /bin/bash -c "gwctl get import --name foo | jq '.Status.Listener.Port' | tr -d '\n'")
+  PORT=$(kubectl exec -i gwctl -- /bin/bash -c "gwctl get import --name foo | jq '.Status.Listener.Port' | tr -d '\n'")
 
   # expose imported service (TODO: remove this when controlplane automatically creates a service)
   kubectl expose deployment cl-dataplane --name=bla --port=9999 --target-port=$PORT
 
   # wait for imported service socket to come up
-  kubectl exec -it gwctl -- timeout 30 sh -c 'until nc -z $0 $1; do sleep 0.1; done' bla 9999
+  kubectl exec -i gwctl -- timeout 30 sh -c 'until nc -z $0 $1; do sleep 0.1; done' bla 9999
   # wait for iperf server to come up
-  kubectl exec -it gwctl -- timeout 30 sh -c 'until nc -z $0 $1; do sleep 0.1; done' gwctl 1234
+  kubectl exec -i gwctl -- timeout 30 sh -c 'until nc -z $0 $1; do sleep 0.1; done' gwctl 1234
 
   # run iperf client
-  kubectl exec -it gwctl -- iperf3 -c bla -p 9999 -t 1
+  kubectl exec -i gwctl -- iperf3 -c bla -p 9999 -t 1
 }
 
 cd $TEST_DIR