diff --git a/CMakeLists.txt b/CMakeLists.txt
index b619e06fb..55880990c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -190,17 +190,11 @@ if (ENABLE_QT)
         if (DEFINED QT_VER)
             download_bundled_external("qt/" ${QT_VER} QT_PREFIX)
         endif()
-    elseif (DEFINED ENV{QTDIR})
-        # Set CMAKE_PREFIX_PATH if QTDIR is defined in the environment This allows CMake to
-        # automatically find the Qt packages on Windows
-        set(QT_PREFIX "$ENV{QTDIR}")
-    endif()
 
-    # Passing an empty HINTS seems to cause default system paths to get ignored in CMake 2.8 so make
-    # sure to not pass anything if we don't have one
-    if (DEFINED QT_PREFIX)
         set(QT_PREFIX_HINT HINTS "${QT_PREFIX}")
     else()
+        # Passing an empty HINTS seems to cause default system paths to get ignored in CMake 2.8 so
+        # make sure to not pass anything if we don't have one.
         set(QT_PREFIX_HINT)
     endif()
 
diff --git a/appveyor.yml b/appveyor.yml
index 4d6f53f96..6e073ece7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,7 @@ install:
 before_build:
   - mkdir build
   - cd build
-  - cmake -G "Visual Studio 12 Win64" -DCITRA_USE_BUNDLED_GLFW=1 ..
+  - cmake -G "Visual Studio 12 Win64" -DCITRA_USE_BUNDLED_GLFW=1 -DQt5_DIR=%QTDIR%/lib/cmake/Qt5 ..
   - cd ..
 
 after_build: