diff --git a/build/toolchain.emscripten.mak b/build/toolchain.emscripten.mak
index 7755b4f06..8fd61e292 100644
--- a/build/toolchain.emscripten.mak
+++ b/build/toolchain.emscripten.mak
@@ -83,9 +83,10 @@ ifeq ($(DEBUG),1)
 EMFLAGS += --profiling-funcs
 EMFLAGS += -s ASSERTIONS=1
 EMFLAGS += -s SAFE_HEAP=1
+EMFLAGS += -s STACK_OVERFLOW_CHECK=1
 endif
 
 EMFLAGS += -s WASM=0 -s MODULARIZE=1 -s 'EXPORT_NAME="Epsilon"'
 
 SFLAGS += $(EMFLAGS)
-LDFLAGS += $(EMFLAGS) -Oz -s EXPORTED_FUNCTIONS='["_main", "_IonEventsEmscriptenKeyDown", "_IonEventsEmscriptenKeyUp", "_IonEventsEmscriptenPushEvent", "_IonSoftwareVersion", "_IonPatchLevel"]'
+LDFLAGS += $(EMFLAGS) -Oz -s EXPORTED_FUNCTIONS='["_main", "_IonEventsEmscriptenKeyDown", "_IonEventsEmscriptenKeyUp", "_IonEventsEmscriptenPushEvent", "_IonSoftwareVersion", "_IonPatchLevel"]' -s EXTRA_EXPORTED_RUNTIME_METHODS='["Pointer_stringify"]'