diff --git a/.travis.yml b/.travis.yml
index 42a9a1f..0e5eae8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,8 @@ addons:
     packages:
     - gcc-4.9
     - g++-4.9
+    - gobjc-4.9
+    - gnustep-base
 env:
   global:
     GCOV: gcov-4.9
diff --git a/appveyor.yml b/appveyor.yml
index 6b91c6b..88ab0e9 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,7 +15,6 @@ environment:
   matrix:
   - COMPILER: mingw
     GENERATOR: "MSYS Makefiles"
-    CMAKE_OPTS: -DLANG_OBJC=ON
   - COMPILER: msvc
     GENERATOR: "Visual Studio 14 2015"
     CFLAGS: /MP