diff --git a/src/cfgparse.l b/src/cfgparse.l
index 161ddfdc..cdf110d3 100644
--- a/src/cfgparse.l
+++ b/src/cfgparse.l
@@ -203,6 +203,7 @@ none                            { return TOK_NONE; }
 focus_follows_mouse             { return TOKFOCUSFOLLOWSMOUSE; }
 force_focus_wrapping            { return TOK_FORCE_FOCUS_WRAPPING; }
 force_xinerama                  { return TOK_FORCE_XINERAMA; }
+force-xinerama                  { return TOK_FORCE_XINERAMA; }
 fake_outputs                    { WS_STRING; return TOK_FAKE_OUTPUTS; }
 fake-outputs                    { WS_STRING; return TOK_FAKE_OUTPUTS; }
 workspace_auto_back_and_forth   { return TOK_WORKSPACE_AUTO_BAF; }