diff --git a/.travis.yml b/.travis.yml
index c0e4be7c..1a960bb6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -229,7 +229,7 @@ cache:
 - directories:
   - "$HOME/.sonar/cache"
 before_deploy:
-- "gpg --allow-secret-key-import appimage/secret.gpg"
+- "gpg --import appimage/secret.gpg"
 - "./appimage/build.sh"
 
 deploy:
diff --git a/appimage/build.sh b/appimage/build.sh
index 1c74722e..96a322a9 100755
--- a/appimage/build.sh
+++ b/appimage/build.sh
@@ -30,7 +30,7 @@ pushd "$BUILD_DIR"
 
 # configure build files with cmake
 # we need to explicitly set the install prefix, as CMake's default is /usr/local for some reason...
-cmake -DCMAKE_INSTALL_PREFIX=/usr "$REPO_ROOT"
+cmake -DRELEASE=ON -DCMAKE_INSTALL_PREFIX=/usr "$REPO_ROOT"
 
 # build project and install files into AppDir
 make -j4