diff --git a/build/targets.mak b/build/targets.mak
index c770b34bf..80ba16aa1 100644
--- a/build/targets.mak
+++ b/build/targets.mak
@@ -88,11 +88,9 @@ stable_release:
 	$(Q) echo "BUILD_FIRMWARE    SIMULATOR ANDROID"
 	$(Q) make -j8 PLATFORM=simulator TARGET=android clean
 	$(Q) make -j8 PLATFORM=simulator TARGET=android epsilon.official.apk
-#TODO: what are the files made by gradle?
-#	$(Q) cp output/release/simulator/android/epsilon.official.apk output/stable_release/epsilon.apk
+	$(Q) cp output/release/simulator/android/app/outputs/apk/release/android-release-unsigned.apk output/stable_release/epsilon.apk
 	$(Q) echo "BUILD_FIRMWARE    SIMULATOR IOS"
 	$(Q) make -j8 PLATFORM=simulator TARGET=ios clean
 	$(Q) make -j8 PLATFORM=simulator TARGET=ios IOS_PROVISIONNING_PROFILE="~/Downloads/NumWorks_Graphing_Calculator_Distribution.mobileprovision" output/release/simulator/ios/app/epsilon.official.ipa
-#TODO: which files are generated by codesign?
-#	$(Q) cp output/release/simulator/ios/app/epsilon.official.ipa output/stable_release/epsilon.ipa
+	$(Q) cp output/release/simulator/ios/app/epsilon.official.ipa output/stable_release/epsilon.ipa
 endif