diff --git a/.appveyor.yml b/.appveyor.yml
index cab35f82aa..221caf6485 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -56,5 +56,5 @@ build_script:
   - cd build
   - cmake -DPacket_ROOT=c:\projects\libpcap\Win32\%SDK% -G"%GENERATOR%" ..
   - if "%GENERATOR%"=="MinGW Makefiles" set PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0;%PATH%
-  - if NOT "%GENERATOR"=="MinGW Makefiles" msbuild /m /nologo /p:Configuration=Release pcap.sln
+  - if NOT "%GENERATOR%"=="MinGW Makefiles" msbuild /m /nologo /p:Configuration=Release pcap.sln
   - if "%GENERATOR%"=="MinGW Makefiles" mingw32-make