diff --git a/pkg/canary/daemonset_ready.go b/pkg/canary/daemonset_ready.go
index 5ac8d03e..39890967 100644
--- a/pkg/canary/daemonset_ready.go
+++ b/pkg/canary/daemonset_ready.go
@@ -87,5 +87,5 @@ func (c *DaemonSetController) isDaemonSetReady(cd *flaggerv1.Canary, daemonSet *
 				daemonSet.Status.NumberAvailable, daemonSet.Status.DesiredNumberScheduled)
 		}
 	}
-	return true, fmt.Errorf("waiting for rollout to finish: observed daemonset generation less then desired generation")
+	return true, fmt.Errorf("waiting for rollout to finish: observed daemonset generation less than desired generation")
 }
diff --git a/pkg/canary/deployment_ready.go b/pkg/canary/deployment_ready.go
index bfcfeed5..45a87c4d 100644
--- a/pkg/canary/deployment_ready.go
+++ b/pkg/canary/deployment_ready.go
@@ -100,7 +100,7 @@ func (c *DeploymentController) isDeploymentReady(deployment *appsv1.Deployment,
 		}
 	} else {
 		return true, fmt.Errorf(
-			"waiting for rollout to finish: observed deployment generation less then desired generation")
+			"waiting for rollout to finish: observed deployment generation less than desired generation")
 	}
 	return true, nil
 }