diff --git a/charts/cert-manager/templates/_helpers.tpl b/charts/cert-manager/templates/_helpers.tpl
index c58adeb..83d844f 100644
--- a/charts/cert-manager/templates/_helpers.tpl
+++ b/charts/cert-manager/templates/_helpers.tpl
@@ -179,7 +179,7 @@
 Any changes to this function should also be made in cert-manager, trust-manager, approver-policy, ...
 See https://github.com/cert-manager/cert-manager/issues/6329 for a list of linked PRs.
 */}}
-{{- define "image" -}}
+{{- define "cert-manager.image" -}}
 {{- /*
 Calling convention:
 
@@ -191,7 +191,7 @@
 */ -}}
 
 {{- if ne (len .) 4 -}}
-    {{- fail (printf "ERROR: template \"image\" expects (tuple <imageValues> <imageRegistry> <imageNamespace> <defaultReference>), got %d arguments" (len .)) -}}
+    {{- fail (printf "ERROR: template \"cert-manager.image\" expects (tuple <imageValues> <imageRegistry> <imageNamespace> <defaultReference>), got %d arguments" (len .)) -}}
 {{- end -}}
 
 {{- $image := index . 0 -}}