diff --git a/doc/building.md b/doc/building.md
index b5e7f62..961213b 100644
--- a/doc/building.md
+++ b/doc/building.md
@@ -87,6 +87,7 @@ This will install `ffmpeg` to `/usr/local/bin/ffmpeg`:
     ./configure --disable-yasm
     make
     sudo make install
+    cd ..
     rm -rf ffmpeg
 
 ###Installing Redis