diff --git a/BUILDING.md b/BUILDING.md
index d5d26733c6db37..983fa9188e5317 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -543,7 +543,8 @@ export CC="ccache cc"    # add to ~/.zshrc or other shell config file
 export CXX="ccache c++"  # add to ~/.zshrc or other shell config file
 ```
 
-This will allow for near-instantaneous rebuilds even when switching branches.
+This will allow for near-instantaneous rebuilds when switching branches back
+and forth that were built with cache.
 
 When modifying only the JS layer in `lib`, it is possible to externally load it
 without modifying the executable: