diff --git a/.chezmoi.yaml.tmpl b/.chezmoi.yaml.tmpl
index de6798d..6b393dc 100644
--- a/.chezmoi.yaml.tmpl
+++ b/.chezmoi.yaml.tmpl
@@ -24,7 +24,7 @@
 {{-   end -}}
 {{- end -}}
 
-{{- if $hasOp -}}
+{{- if and $hasOp (eq .chezmoi.os "darwin") -}}
 {{-   $signingKey = onepasswordRead "op://Dotfiles/Git/signing_key" -}}
 {{- end -}}