--- b/devel/fossil/Makefile	
+++ b/devel/fossil/Makefile	
@@ -34,8 +34,8 @@ TCL_DESC=	Enable Tcl integration
 JSON_CONFIGURE_ON=	--json
 STATIC_CONFIGURE_ON=	--static
 FUSE_CONFIGURE_OFF=	--disable-fusefs
-TH1HOOKS_CONFIGURE_WITH=th1-hooks
-TCL_CONFIGURE_WITH=	tcl-stubs=${TCL_LIBDIR} tcl=${LOCALBASE}
+TH1HOOKS_CONFIGURE_ON=	--with-th1-hooks
+TCL_CONFIGURE_ON=	--with-tcl-stubs=${TCL_LIBDIR} --with-tcl=${LOCALBASE}
 TCL_USES=		tcl
 FUSE_LIB_DEPENDS=	libfuse.so:sysutils/fusefs-libs
 FUSE_USES=		localbase:ldflags