diff --git a/BUILD_OSX.md b/BUILD_OSX.md
index 2598507c90..60fbb7cf92 100644
--- a/BUILD_OSX.md
+++ b/BUILD_OSX.md
@@ -12,6 +12,12 @@ We have a [homebrew formulas repository](https://github.com/highfidelity/homebre
 
 *Our [qt5 homebrew formula](https://raw.github.com/highfidelity/homebrew-formulas/master/qt5.rb) is for a patched version of Qt 5.4.x stable that removes wireless network scanning that can reduce real-time audio performance. We recommended you use this formula to install Qt.*
 
+###Qt
+
+Assuming you've installed Qt 5 using the homebrew instructions above, you'll need to set QT_CMAKE_PREFIX_PATH so CMake can find your installation of Qt. For Qt 5.4.1 installed via homebrew, set QT_CMAKE_PREFIX_PATH as follows.
+
+    export QT_CMAKE_PREFIX_PATH=/usr/local/Cellar/qt5/5.4.1/lib/cmake
+
 ###Xcode
 If Xcode is your editor of choice, you can ask CMake to generate Xcode project files instead of Unix Makefiles.
 
@@ -19,4 +25,4 @@ If Xcode is your editor of choice, you can ask CMake to generate Xcode project f
 
 After running cmake, you will have the make files or Xcode project file necessary to build all of the components. Open the hifi.xcodeproj file, choose ALL_BUILD from the Product > Scheme menu (or target drop down), and click Run.
 
-If the build completes successfully, you will have built targets for all components located in the `build/${target_name}/Debug` directories.
\ No newline at end of file
+If the build completes successfully, you will have built targets for all components located in the `build/${target_name}/Debug` directories.