diff --git a/pkg/webhook/mutation/pod_mutator/oneagent_mutation/containers.go b/pkg/webhook/mutation/pod_mutator/oneagent_mutation/containers.go
index 05def24f46..dc097ba81f 100644
--- a/pkg/webhook/mutation/pod_mutator/oneagent_mutation/containers.go
+++ b/pkg/webhook/mutation/pod_mutator/oneagent_mutation/containers.go
@@ -31,7 +31,7 @@ func (mutator *OneAgentPodMutator) mutateUserContainers(request *dtwebhook.Mutat
 			continue
 		}
 
-		addContainerInfoInitEnv(request.InstallContainer, i+1, container.Name, container.Image)
+		addContainerInfoInitEnv(request.InstallContainer, injectedContainers+1, container.Name, container.Image)
 		mutator.addOneAgentToContainer(request.ToReinvocationRequest(), container)
 		injectedContainers++
 	}