diff --git a/.appveyor.yml b/.appveyor.yml
index a06bc8ded6d91eebb600234b4fb762ef8679d0c0..9654cf79a0e6fb5d6843071e8748ef560858e5d3 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -11,7 +11,7 @@ install:
   - call "%ProgramFiles(x86)%\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" x86
   - set PATH=C:\Qt\Tools\QtCreator\bin;C:\Qt\5.4\msvc2013_opengl\bin;%PATH%
   - mkdir %LOCALAPPDATA%\QtProject && copy test\qtlogging.ini %LOCALAPPDATA%\QtProject\
-  - cinst nsis -y -installArgs /D="%programfiles(x86)%\NSIS"
+  - if "%CONFIG%" EQU "installer" ( cinst nsis -y -installArgs /D="%programfiles(x86)%\NSIS" )
 
 build_script:
   - C:\Qt\5.4\msvc2013_opengl\bin\qmake -r CONFIG-=debug_and_release CONFIG+=%CONFIG% CONFIG+=WarningsAsErrorsOn CONFIG+=jombuild qgroundcontrol.pro