diff --git a/pkg/kubelet/config/flags.go b/pkg/kubelet/config/flags.go
index e493a28d071..4ff13cacf0a 100644
--- a/pkg/kubelet/config/flags.go
+++ b/pkg/kubelet/config/flags.go
@@ -50,7 +50,7 @@ type ContainerRuntimeOptions struct {
 func (s *ContainerRuntimeOptions) AddFlags(fs *pflag.FlagSet) {
 	// General settings.
 	fs.StringVar(&s.RuntimeCgroups, "runtime-cgroups", s.RuntimeCgroups, "Optional absolute name of cgroups to create and run the runtime in.")
-	fs.StringVar(&s.PodSandboxImage, "pod-infra-container-image", s.PodSandboxImage, fmt.Sprint("Specified image will not be pruned by the image garbage collector. CRI implementations have their own configuration to set this image."))
+	fs.StringVar(&s.PodSandboxImage, "pod-infra-container-image", s.PodSandboxImage, fmt.Sprintf("Specified image will not be pruned by the image garbage collector. CRI implementations have their own configuration to set this image."))
 	_ = fs.MarkDeprecated("pod-infra-container-image", "will be removed in 1.35. Image garbage collector will get sandbox image information from CRI.")
 
 	// Image credential provider settings.