diff --git a/INSTALL b/INSTALL
index f3907339e..7dc8fbfb2 100644
--- a/INSTALL
+++ b/INSTALL
@@ -2,7 +2,7 @@ Building:
 =========
 mkdir build
 cd build
-cmake .. [-DCMAKE_INSTALL_PREFIX=/usr/local] [-DWITH_GUI_TESTS=ON]
+cmake .. [-DCMAKE_INSTALL_PREFIX=/usr/local] [-DCMAKE_VERBOSE_MAKEFILE=ON] [-DWITH_GUI_TESTS=ON]
 make [-jX]
 
 Installing: