diff --git a/Source/OpenTK/OpenTK.dll.config b/Source/OpenTK/OpenTK.dll.config
index 23689f65..da90fc96 100644
--- a/Source/OpenTK/OpenTK.dll.config
+++ b/Source/OpenTK/OpenTK.dll.config
@@ -14,4 +14,6 @@
   <dllmap os="osx" dll="libGLESv2.dll" target="/System/Library/Frameworks/OpenGLES.framework/OpenGLES" />
   <dllmap os="osx" dll="opencl.dll" target="/System/Library/Frameworks/OpenCL.framework/OpenCL"/>
   <dllmap os="osx" dll="SDL2.dll" target="libSDL2.dylib"/>
+  <dllmap os="osx" dll="libX11" target="/usr/X11/lib/libX11.6.dylib"/>
+  <dllmap os="osx" dll="libXi" target="/usr/X11/lib/libXi.6.dylib"/>
 </configuration>