diff --git a/INSTALL b/INSTALL
index c9a6c5eb29e93b8de64167cc62d88d17e8487098..e0339ee7ddf330b0a7a6a92f47fe1e91fea8d741 100644
--- a/INSTALL
+++ b/INSTALL
@@ -5,7 +5,7 @@ INSTALLATION GUIDE
     cd sflphone-common
     # Compile pjsip
     cd libs/pjproject
-	./autogen.sh
+    ./autogen.sh
     ./configure
     make dep && make
     # Go back to the root