diff --git a/.travis.yml b/.travis.yml
index d961204..f04e462 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,34 +11,34 @@ matrix:
   - env:
     - BUILD_SCRIPT=debian_travis.sh
     - QMAKE_FLAGS_QT4=QMAKE_CXXFLAGS+=-Wno-missing-field-initializers
-    - RELEASE_LABEL=Debian 32-Bit Package
+    - RELEASE_LABEL="Debian 32-Bit Package"
     - DEBIAN_VERSION=jessie
     - DOCKER_USER=i386
     - APT_INSTALL=clang
   - env:
     - BUILD_SCRIPT=debian_travis.sh
     - QMAKE_FLAGS_QT4=QMAKE_CXXFLAGS+=-Wno-missing-field-initializers
-    - RELEASE_LABEL=Debian 64-Bit Package
+    - RELEASE_LABEL="Debian 64-Bit Package"
     - DEBIAN_VERSION=jessie
     - DOCKER_USER=amd64
     - APT_INSTALL=clang
   - env:
     - BUILD_SCRIPT=windows_travis.sh
     - QT_SELECT=qt5-i686-w64-mingw32
-    - RELEASE_LABEL=Windows 32-Bit Portable
+    - RELEASE_LABEL="Windows 32-Bit Portable"
   - env:
     - BUILD_SCRIPT=windows_travis.sh
     - QT_SELECT=qt5-x86_64-w64-mingw32
-    - RELEASE_LABEL=Windows 64-Bit Portable
+    - RELEASE_LABEL="Windows 64-Bit Portable"
     - EXECUTABLE_ARCH=_x64
   - env:
     - BUILD_SCRIPT=wininstall_travis.sh
     - QT_SELECT=qt5-x86_64-w64-mingw32
-    - RELEASE_LABEL=Windows 64-Bit Installer
+    - RELEASE_LABEL="Windows 64-Bit Installer"
   - os: osx
     env:
         - BUILD_SCRIPT=osx_travis.sh
-        - RELEASE_LABEL=Mac OS X 64-Bit Disk Image
+        - RELEASE_LABEL="Mac OS X 64-Bit Disk Image"
 
 before_install:
   - ".travis/source.sh"