diff --git a/Building/MacOS/BUILD-mac.md b/Building/MacOS/BUILD-mac.md
index 22b64f35..b9d71fe0 100644
--- a/Building/MacOS/BUILD-mac.md
+++ b/Building/MacOS/BUILD-mac.md
@@ -77,17 +77,13 @@ NOTE: Official builds are currently made with [macOS 10.14 Mojave] and Command-L
     3. Click to expand "Details" for the **qmake** build step.
     4. Uncheck "Enable Qt Quick Compiler", click "No" to defer recompiling.
 4. Configure packaging for distribution:
-    1. Copy the "Build directory" path from the **Build Settings** panel above. (Default is "/Users/build/OSCAR-code/build-oscar-Desktop_Qt_5_12_5_clang_64bit-Release")
-    2. Tools > External > Configure...
-    3. Select "Add Tool" from the "Add" drop-down menu near the bottom of the window.
-    4. Set the name to "Deploy".
-    5. Set the Description to "Creates a distributable .dmg".
-    6. Set the Executable to the full path where you installed Qt: "/Users/build/Qt5.12.5/5.12.5/clang_64/bin/macdeployqt".
-    7. Set the Arguments to "OSCAR.app -dmg".
-    8. Set the working directory to the build directory path copied in step 1.
-    9. Click OK.
-5. To compile, select Build > Build Project "oscar". The application is in OSCAR.app.
-6. To create a .dmg, select Tools > External > Deploy. The dmg is at OSCAR.dmg. **Note that the resulting .dmg will NOT include the README.**
+    1. Click "Clone..." to the right of the "Edit build configuration" drop-down menu.
+    2. Name the new configuration "Deploy".
+    3. Click to expand "Details" for the **Make** build step.
+    4. Set the Make arguments for the Make step to "dist-mac".
+5. To build OSCAR, select "Release" from the "oscar" button in the left panel. Then select Build > Build Project "oscar". The application is in OSCAR.app.
+6. To build OSCAR and package for distribution, select "Deploy" from the "oscar" button in the left panel. Then select Build > Build Project "oscar". The dmg is at OSCAR.dmg.
+    * Progress in "Compile Output" will pause for several seconds while "Creating .dmg". This is normal.
 
 [Qt 5.12.5]: http://download.qt.io/archive/qt/5.12/5.12.5/qt-opensource-mac-x64-5.12.5.dmg
 [macOS 10.14 Mojave]: https://apps.apple.com/us/app/macos-mojave/id1398502828?ls=1&mt=12
diff --git a/oscar/oscar.pro b/oscar/oscar.pro
index cd228b00..ec91e8a5 100644
--- a/oscar/oscar.pro
+++ b/oscar/oscar.pro
@@ -515,4 +515,5 @@ macx {
     # Add a dist-mac target to build the distribution .dmg.
     QMAKE_EXTRA_TARGETS += dist-mac
     dist-mac.commands = QT_BIN=$$[QT_INSTALL_PREFIX]/bin $$_PRO_FILE_PWD_/scripts/create_dmg OSCAR OSCAR.app $$_PRO_FILE_PWD_/../Building/MacOS/README.rtfd
+    dist-mac.depends = $${TARGET}.app/Contents/MacOS/$${TARGET}
 }
diff --git a/oscar/scripts/create_dmg b/oscar/scripts/create_dmg
index eac490dd..c829f204 100755
--- a/oscar/scripts/create_dmg
+++ b/oscar/scripts/create_dmg
@@ -17,10 +17,15 @@ do
 done
 
 if [[ ${APP} != "" ]]; then
+    if [[ -z "$QT_BIN" ]]; then
+        echo "Error: QT_BIN must be defined"
+        exit 1
+    fi
+
     # Create deployable application bundle (if it hasn't been already been done)
     if [[ ! -d "${APP}/Contents/Frameworks/QtCore.framework" ]]; then
-        echo $QT_BIN/macdeployqt "${APP}"
-        $QT_BIN/macdeployqt "${APP}"
+        echo "${QT_BIN}"/macdeployqt "${APP}"
+        "${QT_BIN}"/macdeployqt "${APP}" || exit
     fi
 
     # TODO: add version number to target .dmg filename