diff --git a/lib/datasource/repology/readme.md b/lib/datasource/repology/readme.md
index d3d014d765aec4e64ae434aa40de26375ba79131..5a1f555b0f85933e4ada2c08d6fec93238d7fee8 100644
--- a/lib/datasource/repology/readme.md
+++ b/lib/datasource/repology/readme.md
@@ -16,7 +16,7 @@ A real world example for this specific datasource would be maintaining system pa
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+        "#\\s*renovate:\\s*datasource=(?<datasource>.*?) depName=(?<depName>.*?)( versioning=(?<versioning>.*?))?\\sENV .*?_VERSION=\"(?<currentValue>.*)\"\\s"
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       "versioningTemplate": "{{#if versioning}}{{{versioning}}}{{else}}semver{{/if}}"
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