diff --git a/tests/01-vpp-bird/01-e2e-lab.robot b/tests/01-vpp-bird/01-e2e-lab.robot
index 797b5d0..fa5cc1c 100644
--- a/tests/01-vpp-bird/01-e2e-lab.robot
+++ b/tests/01-vpp-bird/01-e2e-lab.robot
@@ -47,7 +47,7 @@ Check OSPF IPv6 Adjacency
 
 Ensure client1 can ping client2
     ${rc}    ${output} =    Run And Return Rc And Output
-    ...    ${CLAB_BIN} --runtime ${runtime} exec -t ${CURDIR}/${lab-file-name} --label clab-node-name\=client1 --cmd "ping -c 5 10.82.98.82"
+    ...    ${CLAB_BIN} --runtime ${runtime} exec -t ${CURDIR}/${lab-file-name} --label clab-node-name\=client1 --cmd "ping -c 5 -i 0.01 10.82.98.82"
     Log    ${output}
     Should Be Equal As Integers    ${rc}    0
     Should Contain    ${output}    5 packets transmitted, 4 packets received, 20% packet loss
diff --git a/tests/02-vpp-frr/01-e2e-lab.robot b/tests/02-vpp-frr/01-e2e-lab.robot
index a2626e3..65ee06e 100644
--- a/tests/02-vpp-frr/01-e2e-lab.robot
+++ b/tests/02-vpp-frr/01-e2e-lab.robot
@@ -47,7 +47,7 @@ Check OSPF IPv6 Adjacency
 
 Ensure client1 can ping client2
     ${rc}    ${output} =    Run And Return Rc And Output
-    ...    ${CLAB_BIN} --runtime ${runtime} exec -t ${CURDIR}/${lab-file-name} --label clab-node-name\=client1 --cmd "ping -c 5 10.82.98.82"
+    ...    ${CLAB_BIN} --runtime ${runtime} exec -t ${CURDIR}/${lab-file-name} --label clab-node-name\=client1 --cmd "ping -c 5 -i 0.01 10.82.98.82"
     Log    ${output}
     Should Be Equal As Integers    ${rc}    0
     Should Contain    ${output}    5 packets transmitted, 4 packets received, 20% packet loss