diff --git a/GNUmakefile b/GNUmakefile
index 5f24bb33..60eadbcb 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1055,7 +1055,7 @@ out/TildeFriends.aab: out/apk/classes.dex $(filter-out %debug%, $(ANDROID_TARGET
 	@$(ANDROID_NDK)/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip --only-keep-debug out/androidrelease-x86_64/tildefriends -o out/aab/staging/BUNDLE-METADATA/com.android.tools.build.debugsymbols/x86_64/libtildefriends.so.sym
 	@$(ANDROID_NDK)/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip --only-keep-debug out/androidrelease-x86/tildefriends -o out/aab/staging/BUNDLE-METADATA/com.android.tools.build.debugsymbols/x86/libtildefriends.so.sym
 	@cd out/aab/staging; zip -u ../../../$@ BUNDLE-METADATA/com.android.tools.build.debugsymbols/arm64-v8a/libtildefriends.so.sym BUNDLE-METADATA/com.android.tools.build.debugsymbols/armeabi-v7a/libtildefriends.so.sym BUNDLE-METADATA/com.android.tools.build.debugsymbols/x86_64/libtildefriends.so.sym BUNDLE-METADATA/com.android.tools.build.debugsymbols/x86/libtildefriends.so.sym; cd ../../../
-	@$(ANDROID_BUILD_TOOLS)/apksigner sign -ks .keys/android.jks --ks-key-alias androidKey -ks-pass pass:android --min-sdk-version=$(ANDROID_MIN_SDK_VERSION) $@
+	@$(ANDROID_BUILD_TOOLS)/apksigner sign -ks .keys/android.jks --ks-key-alias androidKey -ks-pass pass:android --min-sdk-version=$(ANDROID_MIN_SDK_VERSION) --alignment-preserved $@
 
 aab: out/TildeFriends.aab ## Build an Android App Bundle.
 .PHONY: aab
@@ -1117,12 +1117,12 @@ out/apk/TildeFriends-%.fdroid.unsigned.apk:
 
 out/%.apk: out/apk/%.unsigned.apk
 	@echo "[apksigner] $(notdir $@)"
-	@$(ANDROID_BUILD_TOOLS)/apksigner sign --ks .keys/android.jks --ks-key-alias androidKey --ks-pass pass:android --key-pass pass:android --min-sdk-version $(ANDROID_MIN_SDK_VERSION) --out $@ $<
+	@$(ANDROID_BUILD_TOOLS)/apksigner sign --ks .keys/android.jks --ks-key-alias androidKey --ks-pass pass:android --key-pass pass:android --min-sdk-version $(ANDROID_MIN_SDK_VERSION) --out $@ --alignment-preserved $<
 
 out/%.zopfli.apk: out/%.apk
 	@echo "[zopfli] $(notdir $@)"
 	$(ANDROID_BUILD_TOOLS)/zipalign -f -z 4 $< $@.zopfli
-	@$(ANDROID_BUILD_TOOLS)/apksigner sign --ks .keys/android.jks --ks-key-alias androidKey --ks-pass pass:android --key-pass pass:android --min-sdk-version $(ANDROID_MIN_SDK_VERSION) --out $@ $@.zopfli
+	@$(ANDROID_BUILD_TOOLS)/apksigner sign --ks .keys/android.jks --ks-key-alias androidKey --ks-pass pass:android --key-pass pass:android --min-sdk-version $(ANDROID_MIN_SDK_VERSION) --out $@ --alignment-preserved $@.zopfli
 
 release-apk: out/TildeFriends-arm-release.zopfli.apk out/TildeFriends-x86-release.zopfli.apk ## Build an Android release APK.
 .PHONY: release-apk