diff --git a/lib/Generate.js b/lib/Generate.js
index f6cad66a..6d87e068 100644
--- a/lib/Generate.js
+++ b/lib/Generate.js
@@ -53,8 +53,10 @@ ${after}
 // variant of the `Test` type. To avoid having to update this regex if a new
 // variant is added, newer versions of elm-explorations/test have prefixed all
 // variants with `ElmTestVariant__` so we can match just on that.
+// `\$?` is for the Lamdera compiler, where definitions sometimes end with a `$`.
+// See https://github.com/lamdera/compiler/pull/41#issuecomment-2725158568
 const testVariantDefinition =
-  /^var\s+\$elm_explorations\$test\$Test\$Internal\$(?:ElmTestVariant__\w+|UnitTest|FuzzTest|Labeled|Skipped|Only|Batch)\s*=\s*(?:\w+\(\s*)?function\s*\([\w, ]*\)\s*\{\s*return *\{/gm;
+  /^var\s+\$elm_explorations\$test\$Test\$Internal\$(?:ElmTestVariant__\w+|UnitTest|FuzzTest|Labeled|Skipped|Only|Batch)\$?\s*=\s*(?:\w+\(\s*)?function\s*\([\w, ]*\)\s*\{\s*return *\{/gm;
 
 const checkDefinition =
   /^(var\s+\$author\$project\$Test\$Runner\$Node\$check)\s*=\s*\$author\$project\$Test\$Runner\$Node\$checkHelperReplaceMe___;?$/m;