diff --git a/BUILDING.md b/BUILDING.md
index f3c6051..9fc6440 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -91,6 +91,7 @@ mkdir Debug
 cd Debug
 cmake --config Debug "-DCMAKE_BUILD_TYPE=Debug" ..
 cmake --build .
+sudo make install
 ```
 
 ### Cairo/Xlib on macOS