diff --git a/build/toolchain.emscripten.mak b/build/toolchain.emscripten.mak
index 259b4e03a..9dc1cdb4b 100644
--- a/build/toolchain.emscripten.mak
+++ b/build/toolchain.emscripten.mak
@@ -32,9 +32,21 @@ _mp_call_function_0 \
 _IonEventsEmscriptenPushEvent \
 __ZN3Ion6Events13isShiftActiveEv \
 __ZN3Ion6Events13isAlphaActiveEv \
-__ZN3Ion6Events5EventC2ENS_8Keyboard3KeyEbb
+__ZN3Ion6Events5EventC2ENS_8Keyboard3KeyEbb \
+_mp_parse_compile_execute \
+_do_load_from_lexer \
+_do_load \
+_mp_builtin___import__ \
+_mp_import_name \
+__ZN4Code25ScriptParameterController11handleEventEN3Ion6Events5EventE \
+__ZN4Code14MenuController28openConsoleWithScriptAtIndexEi \
+__ZN4Code17ConsoleController23autoImportScriptAtIndexEib
 
 EMFLAGS = -s EMTERPRETIFY=1 -s EMTERPRETIFY_ASYNC=1 -s EMTERPRETIFY_WHITELIST='[$(foreach sym,$(EMSCRIPTEN_ASYNC_SYMBOLS),"$(sym)",)]'
 
+ifeq ($(DEBUG),1)
+EMFLAGS += --profiling-funcs -s ASSERTIONS=1
+endif
+
 SFLAGS += $(EMFLAGS)
 LDFLAGS += $(EMFLAGS) -Oz -s EXPORTED_FUNCTIONS='["_main", "_IonEventsEmscriptenPushEvent"]'