diff --git a/build/targets.simulator.web.mak b/build/targets.simulator.web.mak
index c5c96149f..e8ef36832 100644
--- a/build/targets.simulator.web.mak
+++ b/build/targets.simulator.web.mak
@@ -1,8 +1,3 @@
 HANDY_TARGETS_EXTENSIONS += zip
 
-$(BUILD_DIR)/epsilon%packed.js: EMSCRIPTEN_INIT_FILE = 0
-
 $(BUILD_DIR)/test.headless.js: EMSCRIPTEN_MODULARIZE = 0
-
-$(BUILD_DIR)/epsilon.packed.js: $(call object_for,$(epsilon_src))
-$(BUILD_DIR)/epsilon.official.packed.js: $(call object_for,$(epsilon_official_src))
diff --git a/build/toolchain.emscripten.mak b/build/toolchain.emscripten.mak
index 1ba3119e0..5f9808065 100644
--- a/build/toolchain.emscripten.mak
+++ b/build/toolchain.emscripten.mak
@@ -121,8 +121,6 @@ EMFLAGS += -s WASM=0
 # Configure LDFLAGS
 EMSCRIPTEN_MODULARIZE ?= 1
 LDFLAGS += -s MODULARIZE=$(EMSCRIPTEN_MODULARIZE) -s 'EXPORT_NAME="Epsilon"'
-EMSCRIPTEN_INIT_FILE ?= 1
-LDFLAGS += --memory-init-file $(EMSCRIPTEN_INIT_FILE)
 
 SFLAGS += $(EMFLAGS)
 LDFLAGS += $(EMFLAGS) -Oz -s EXPORTED_FUNCTIONS='["_main", "_IonSimulatorKeyboardKeyDown", "_IonSimulatorKeyboardKeyUp", "_IonSimulatorEventsPushEvent", "_IonSoftwareVersion", "_IonPatchLevel", "_IonDisplayForceRefresh"]' -s EXTRA_EXPORTED_RUNTIME_METHODS='["UTF8ToString"]'
diff --git a/ion/src/simulator/web/Makefile b/ion/src/simulator/web/Makefile
index 28d4c0c95..964462c01 100644
--- a/ion/src/simulator/web/Makefile
+++ b/ion/src/simulator/web/Makefile
@@ -26,7 +26,7 @@ endif
 
 DEFAULT = epsilon.zip
 
-$(BUILD_DIR)/epsilon%zip: $(BUILD_DIR)/epsilon%packed.js $(BUILD_DIR)/ion/src/simulator/web/simulator.html
+$(BUILD_DIR)/epsilon%zip: $(BUILD_DIR)/epsilon%js $(BUILD_DIR)/ion/src/simulator/web/simulator.html
 	@rm -rf $(basename $@)
 	@mkdir -p $(basename $@)
 	@cp $< $(basename $@)/epsilon.js