diff --git a/packages/squiggle-lang/__tests__/SquiggleLibrary/SquiggleLibrary_Math_test.res b/packages/squiggle-lang/__tests__/SquiggleLibrary/SquiggleLibrary_Math_test.res
index 964df490..a8db2854 100644
--- a/packages/squiggle-lang/__tests__/SquiggleLibrary/SquiggleLibrary_Math_test.res
+++ b/packages/squiggle-lang/__tests__/SquiggleLibrary/SquiggleLibrary_Math_test.res
@@ -2,6 +2,6 @@ open Jest
 open Reducer_TestHelpers
 
 describe("Math Library", () => {
-  testEvalToBe("Math.e", "")
-  testEvalToBe("Math.pi", "")
+  testEvalToBe("Math.e", "Ok(2.718281828459045)")
+  testEvalToBe("Math.pi", "Ok(3.141592653589793)")
 })
diff --git a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn.res b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn.res
index 218aa673..33e63496 100644
--- a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn.res
+++ b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Dispatch/Reducer_Dispatch_BuiltIn.res
@@ -256,6 +256,7 @@ let callInternal = (call: functionCall, environment, reducer: ExpressionT.reduce
 
   switch call {
   | ("$_atIndex_$", [EvArray(aValueArray), EvNumber(fIndex)]) => arrayAtIndex(aValueArray, fIndex)
+  | ("$_atIndex_$", [EvModule(dict), EvString(sIndex)]) => recordAtIndex(dict, sIndex)
   | ("$_atIndex_$", [EvRecord(dict), EvString(sIndex)]) => recordAtIndex(dict, sIndex)
   | ("$_constructArray_$", [EvArray(aValueArray)]) => EvArray(aValueArray)->Ok
   | ("$_constructRecord_$", [EvArray(arrayOfPairs)]) => constructRecord(arrayOfPairs)