diff --git a/.github/scripts/build_dmg.zsh b/.github/scripts/build_dmg.zsh
index 7f5ecbb..3bd691a 100644
--- a/.github/scripts/build_dmg.zsh
+++ b/.github/scripts/build_dmg.zsh
@@ -39,11 +39,9 @@ if  [ "$IDENTITY_PASSPHRASE" != "" ]; then
 
     # Replace the jar with one containing the executables with corrected signatures.
     rm -f ../Input/beat-link-trigger.jar
-    cp META-INF/MANIFEST.MF ..
-    jar cfm ../Input/beat-link-trigger.jar . ../MANIFEST.MF
+    jar cfm ../Input/beat-link-trigger.jar META-INF/MANIFEST.MF .
     cd ..
     rm -rf jar_tmp
-    rm MANIFEST.MF
 
     # Run jpackage to build the native application as a code signed disk image
     jpackage --name "$blt_name" --input Input --add-modules "$blt_java_modules" \