diff --git a/action.yml b/action.yml
index 294587d..74d2b2f 100644
--- a/action.yml
+++ b/action.yml
@@ -23,6 +23,10 @@ inputs:
       A GitHub token to write comments and write the badge to the wiki
       (``github.token``)
     required: true
+  GITHUB_WIKI:
+    description: >
+      Wiki repository clone url
+    required: true
   COVERAGE_FILE:
     description: >
       Path and filename of the coverage XML file to analyze.
@@ -64,6 +68,7 @@ runs:
   image: Dockerfile
   env:
     GITHUB_TOKEN: ${{ inputs.GITHUB_TOKEN }}
+    GITHUB_WIKI: ${{ inputs.GITHUB_WIKI }}
     COVERAGE_FILE: ${{ inputs.COVERAGE_FILE }}
     COMMENT_TEMPLATE: ${{ inputs.COMMENT_TEMPLATE }}
     DIFF_COVER_ARGS: ${{ inputs.DIFF_COVER_ARGS }}
diff --git a/src/add-to-wiki b/src/add-to-wiki
index bc7c28c..ea6b990 100755
--- a/src/add-to-wiki
+++ b/src/add-to-wiki
@@ -2,7 +2,7 @@
 # Usage $0 {owner/repo} {filename} {commit_message}
 # Stores the content of stdin in a file named {filename} in the wiki of
 # the provided repo
-# Reads envvar GITHUB_TOKEN
+# Reads envvar GITHUB_WIKI
 
 set -eux
 
@@ -13,7 +13,7 @@ commit_message="${3}"
 dir="$(mktemp -d)"
 cd $dir
 
-git clone "https://x-access-token:${GITHUB_TOKEN}@github.com/${repo_name}.wiki.git" .
+git clone "${GITHUB_WIKI}" .
 echo $stdin > "${filename}"
 
 git add "${filename}"