diff --git a/.snapshots/should_build_all_internal_JS_functions/golden b/.snapshots/should_build_all_internal_JS_functions/golden
index 80b14d741..23e72bde6 100644
--- a/.snapshots/should_build_all_internal_JS_functions/golden
+++ b/.snapshots/should_build_all_internal_JS_functions/golden
@@ -185,6 +185,17 @@ global.__listToJSArray__ = (list) => {
   return res
 }
 
+global.__jsArrayToList__ = (arr) => {
+  let res = null
+
+  for (let i = arr.length - 1; i >= 0; i--) {
+    let head = { v: arr[i], n: res }
+    res = head
+  }
+
+  return res
+}
+
 global.__listCtorSpread__ = (_spread, _next) => {
   if (_spread === null) {
     return _next;
diff --git a/.snapshots/should_include_coverage_trackers_when_coverage_is_True/golden b/.snapshots/should_include_coverage_trackers_when_coverage_is_True/golden
index 0f09349e4..f359bb1f5 100644
--- a/.snapshots/should_include_coverage_trackers_when_coverage_is_True/golden
+++ b/.snapshots/should_include_coverage_trackers_when_coverage_is_True/golden
@@ -185,6 +185,17 @@ global.__listToJSArray__ = (list) => {
   return res
 }
 
+global.__jsArrayToList__ = (arr) => {
+  let res = null
+
+  for (let i = arr.length - 1; i >= 0; i--) {
+    let head = { v: arr[i], n: res }
+    res = head
+  }
+
+  return res
+}
+
 global.__listCtorSpread__ = (_spread, _next) => {
   if (_spread === null) {
     return _next;
diff --git a/compiler/main/Generate/JSInternals.hs b/compiler/main/Generate/JSInternals.hs
index 7a788a3c6..dbae2e783 100644
--- a/compiler/main/Generate/JSInternals.hs
+++ b/compiler/main/Generate/JSInternals.hs
@@ -30,6 +30,8 @@ generateInternalsModuleContent target optimized coverage =
     <> "\n"
     <> listToJSArray target
     <> "\n"
+    <> jsArrayToList target
+    <> "\n"
     <> listConstructorSpreadFn target
     <> "\n"
     <> if coverage then "\n" <> hpFnWrap <> "\n" <> hpLineWrap else ""
@@ -269,6 +271,21 @@ listToJSArray target =
     , "}"
     ]
 
+jsArrayToList :: Target -> String
+jsArrayToList target =
+  unlines
+    [ getGlobalForTarget target <> "." <> "__jsArrayToList__ = (arr) => {"
+    , "  let res = null"
+    , ""
+    , "  for (let i = arr.length - 1; i >= 0; i--) {"
+    , "    let head = { v: arr[i], n: res }"
+    , "    res = head"
+    , "  }"
+    , ""
+    , "  return res"
+    , "}"
+    ]
+
 listConstructorSpreadFn :: Target -> String
 listConstructorSpreadFn target =
   unlines
diff --git a/compiler/main/Parse/Madlib/Lexer.x b/compiler/main/Parse/Madlib/Lexer.x
index ac304760f..2982d18ef 100644
--- a/compiler/main/Parse/Madlib/Lexer.x
+++ b/compiler/main/Parse/Madlib/Lexer.x
@@ -536,6 +536,7 @@ mapToken tokenizer (posn, prevChar, pending, input) len = do
 
     TokenLeftDoubleCurly ->
       if sc /= instanceHeader then do
+        pushStartCode 0
         pushStartCode 0
         return TokenLeftDoubleCurly
       else
diff --git a/madlib.cabal b/madlib.cabal
index b2c49cab3..51d8d7a20 100644
--- a/madlib.cabal
+++ b/madlib.cabal
@@ -4,10 +4,10 @@ cabal-version: 2.0
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 3c36d8ff8b835f63fa4e6f5a0d2d964b8ddb4de47e5e6c47dac1b4f6197d532f
+-- hash: 29c5cc1908364a493c67fa28b063e90f6353a77b6c85e6fa590f941d36977473
 
 name:           madlib
-version:        0.13.5
+version:        0.13.6
 description:    Please see the README on GitHub at <https://github.com/madlib-lang/madlib#readme>
 homepage:       https://github.com/madlib-lang/madlib#readme
 bug-reports:    https://github.com/madlib-lang/madlib/issues
diff --git a/package.yaml b/package.yaml
index 4ebfd7886..a42647452 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name:                madlib
-version:             0.13.5
+version:             0.13.6
 github:              "madlib-lang/madlib"
 license:             BSD3
 author:              "Arnaud Boeglin, Brekk Bockrath"
diff --git a/pkg/package.json b/pkg/package.json
index 80eb8e3f3..94c84bc00 100644
--- a/pkg/package.json
+++ b/pkg/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@madlib-lang/madlib",
-  "version": "0.13.5",
+  "version": "0.13.6",
   "main": "./src/run.js",
   "bin": {
     "madlib": "src/run.js"