diff --git a/internal/engine.cm b/internal/engine.cm
index d5ef4522..5eae1b3b 100644
--- a/internal/engine.cm
+++ b/internal/engine.cm
@@ -62,7 +62,7 @@ function use_core(path) {
   if (use_cache[cache_key])
     return use_cache[cache_key];
 
-  var sym = use_embed(path.replace('/','_'))
+  var sym = use_embed(path.replaceAll('/','_'))
 
   // Core scripts are in packages/core/
   var file_path = core_path + '/' + path + MOD_EXT
diff --git a/internal/shop.cm b/internal/shop.cm
index d81dea01..890e4e49 100644
--- a/internal/shop.cm
+++ b/internal/shop.cm
@@ -608,7 +608,7 @@ Shop.open_package_dylib = function(pkg) {
 
   // If no package context, only check core internal symbols
   if (!package_context || package_context == 'core') {
-    path = path.replace('/', '_')
+    path = path.replaceAll('/', '_')
     var core_sym = `js_${path}_use`
     if (os.internal_exists(core_sym)) {
       return {
diff --git a/toml.cm b/toml.cm
index eb5e9960..87c7377d 100644
--- a/toml.cm
+++ b/toml.cm
@@ -195,7 +195,7 @@ function encode_toml(obj) {
         for (var j = 0; j < section_keys.length; j++) {
           var sk = section_keys[j]
           var sv = value[sk]
-          if (!isa(sv, object)) {
+          if (!is_object(sv)) {
             result.push(quote_key(sk) + ' = ' + encode_value(sv))
           }
         }