diff --git a/ion/src/simulator/android/Makefile b/ion/src/simulator/android/Makefile
index 8e1527ec0..e3908dce0 100644
--- a/ion/src/simulator/android/Makefile
+++ b/ion/src/simulator/android/Makefile
@@ -59,16 +59,14 @@ epsilon_apk_deps = $(subst ion/src/simulator/android/src/res,$(BUILD_DIR)/app/re
 epsilon_apk_deps += $(addprefix $(BUILD_DIR)/app/res/,mipmap/ic_launcher.png mipmap-v26/ic_launcher_foreground.png)
 
 define rule_for_gradle
-.PHONY: gradle_$1_$2
-gradle_$1_$2.: $$(epsilon_apk_deps) $$(patsubst %,$$(BUILD_DIR)/app/libs/%/libepsilon$2.so,$(NDK_ABIS))
+.PHONY: gradle_%_$1
+gradle_%_$1.: $$(epsilon_apk_deps) $$(patsubst %,$$(BUILD_DIR)/app/libs/%/libepsilon$1.so,$(NDK_ABIS))
 	@echo "GRADLE ion/src/simulator/android/build.gradle"
-	$(Q) ANDROID_HOME=$(ANDROID_HOME) EPSILON_VERSION=$(EPSILON_VERSION) BUILD_DIR=$(BUILD_DIR) LIBEPSILON_NAME="epsilon$2" ion/src/simulator/android/gradlew -b ion/src/simulator/android/build.gradle $1
+	$(Q) ANDROID_HOME=$(ANDROID_HOME) EPSILON_VERSION=$(EPSILON_VERSION) BUILD_DIR=$(BUILD_DIR) LIBEPSILON_NAME="epsilon$1" ion/src/simulator/android/gradlew -b ion/src/simulator/android/build.gradle $$*
 endef
 
-$(eval $(call rule_for_gradle,assembleCodesigned,))
-$(eval $(call rule_for_gradle,assembleRelease,))
-$(eval $(call rule_for_gradle,assembleCodesigned,.official))
-$(eval $(call rule_for_gradle,assembleRelease,.official))
+$(eval $(call rule_for_gradle,))
+$(eval $(call rule_for_gradle,.official))
 
 DEFAULT = epsilon.apk