diff --git a/appveyor.yml b/appveyor.yml
index edaac073..c37c3031 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,7 +24,7 @@ build_script:
   - cmd: C:\msys64\usr\bin\bash -lc "git clone --single-branch --branch stable https://github.com/mirror/x264.git"
   - cmd: C:\msys64\usr\bin\bash -lc "git clone --single-branch --branch Release_3.2 https://github.com/videolan/x265.git"
   - cmd: C:\msys64\usr\bin\bash -lc "git clone --single-branch --branch release/4.2 https://github.com/FFmpeg/FFmpeg.git"
-  - cmd: C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/Windows/System32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0/:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl && mkdir -p x265/cmake-build && cd x265/cmake-build && cmake ../source && make -j2"
+  - cmd: C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/Windows/System32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0/:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl && mkdir -p x265/cmake-build && cd x265/cmake-build && cmake -G'Unix Makefiles' ../source && make -j2"
   - cmd: C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/Windows/System32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0/:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl && cd x264 && ./configure --enable-static --disable-cli --host=mingw64 && make -j2 && make install"
   - cmd: C:\msys64\usr\bin\bash -lc "export PATH=/mingw64/bin:/usr/local/bin:/usr/bin:/bin:/c/Windows/System32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0/:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl && cd FFmpeg && ./configure --disable-programs --enable-static --disable-shared --enable-libx264 --enable-libx265 --enable-nonfree --enable-gpl --extra-cflags=-I../x264 --extra-ldflags=-L../x264 --target-os=mingw64 && make -j2 && make install"
   - cmd: set OLDPATH=%PATH%