diff --git a/ci/appveyor/emulate_appveyor.bat b/ci/appveyor/emulate_appveyor.bat
index 7efb532..0ff8981 100644
--- a/ci/appveyor/emulate_appveyor.bat
+++ b/ci/appveyor/emulate_appveyor.bat
@@ -2,6 +2,7 @@
 
 cd /d %~dp0
 cd ..\..
+set APPVEYOR=True
 set APPVEYOR_BUILD_FOLDER=%cd%
 echo Emulating appveyor's environment.
 echo APPVEYOR_BUILD_FOLDER set to '%APPVEYOR_BUILD_FOLDER%'
diff --git a/ci/appveyor/install_googletest.bat b/ci/appveyor/install_googletest.bat
index 43b3d94..73d6369 100644
--- a/ci/appveyor/install_googletest.bat
+++ b/ci/appveyor/install_googletest.bat
@@ -25,7 +25,7 @@ echo ===========================================================================
 mkdir build >NUL 2>NUL
 cd build
 set GTEST_ROOT=%APPVEYOR_BUILD_FOLDER%\third_parties\googletest\install
-cmake -DCMAKE_INSTALL_PREFIX=%GTEST_ROOT% -Dgtest_force_shared_crt=ON ..
+cmake -DCMAKE_INSTALL_PREFIX=%GTEST_ROOT% -Dgtest_force_shared_crt=ON -DBUILD_GMOCK=OFF -DBUILD_GTEST=ON ..
 if %errorlevel% neq 0 exit /b %errorlevel%
 cmake --build . --config Release
 if %errorlevel% neq 0 exit /b %errorlevel%
diff --git a/ci/travis/emulate_travis.sh b/ci/travis/emulate_travis.sh
index c89268f..3d08a4b 100755
--- a/ci/travis/emulate_travis.sh
+++ b/ci/travis/emulate_travis.sh
@@ -1,5 +1,6 @@
 restore_dir=$PWD
 cd ../..
+export TRAVIS=true
 export TRAVIS_BUILD_DIR=$PWD
 echo "TRAVIS_BUILD_DIR set to $TRAVIS_BUILD_DIR"
 cd $restore_dir
diff --git a/ci/travis/install_googletest.sh b/ci/travis/install_googletest.sh
index ba6f4c1..2185608 100755
--- a/ci/travis/install_googletest.sh
+++ b/ci/travis/install_googletest.sh
@@ -26,7 +26,7 @@ echo ===========================================================================
 mkdir -p build
 cd build
 export GTEST_ROOT=$TRAVIS_BUILD_DIR/third_parties/googletest/install
-cmake -DCMAKE_INSTALL_PREFIX=$GTEST_ROOT -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF ..
+cmake -DCMAKE_INSTALL_PREFIX=$GTEST_ROOT -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DBUILD_GMOCK=OFF -DBUILD_GTEST=ON ..
 cmake --build .
 echo