diff --git a/site_scons/site_tools/git.py b/site_scons/site_tools/git.py
index e95c62f466..fe083b7566 100644
--- a/site_scons/site_tools/git.py
+++ b/site_scons/site_tools/git.py
@@ -100,7 +100,7 @@ def install_style_hooks(env):
         return
 
     print(git_style_message, end=' ')
-    if SCons.Script.GetOption('install-hooks'):
+    if SCons.Script.GetOption('install_hooks'):
         print("Installing revision control hooks automatically.")
     else:
         try: