diff --git a/packages/squiggle-lang/src/rescript/ForTS/ForTS_SquiggleValue/ForTS_SquiggleValue_Lambda.res b/packages/squiggle-lang/src/rescript/ForTS/ForTS_SquiggleValue/ForTS_SquiggleValue_Lambda.res
index 45b1bd04..9f176576 100644
--- a/packages/squiggle-lang/src/rescript/ForTS/ForTS_SquiggleValue/ForTS_SquiggleValue_Lambda.res
+++ b/packages/squiggle-lang/src/rescript/ForTS/ForTS_SquiggleValue/ForTS_SquiggleValue_Lambda.res
@@ -2,7 +2,7 @@
 
 @genType
 let toString = (v: squiggleValue_Lambda): string =>
-  ReducerInterface_InternalExpressionValue.toStringLambda(v)
+  ReducerInterface_InternalExpressionValue.toStringFunction(v)
 
 @genType
 let parameters = (v: squiggleValue_Lambda): array<string> => {