diff --git a/AppImage/build-ratarmount-appimage.sh b/AppImage/build-ratarmount-appimage.sh
index 1b878273..ec661582 100644
--- a/AppImage/build-ratarmount-appimage.sh
+++ b/AppImage/build-ratarmount-appimage.sh
@@ -80,6 +80,12 @@ function installAppImagePythonPackages()
     #    "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir requests aiohttp sshfs smbprotocol pygit2<1.15 fsspec
     # This bloats the AppImage to 38.5 MB :/. Extracts to 121.0 MB
     #    "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir s3fs gcsfs adlfs dropboxdrivefs
+
+    # Need to install it manually because it is disabled for Python >=3.12 because of:
+    # https://github.com/nathanhi/pyfatfs/issues/41
+    # And we need to apply a patch for that.
+    "$APP_PYTHON_BIN" -I -m pip install --no-cache-dir pyfatfs
+    patch -u "$( find "$APP_DIR" -type f -name FatIO.py )" pyfatfs-issue-41.patch
 }
 
 function installAppImageSystemLibraries()