Index: sys/geom/geom_flashmap.c
===================================================================
--- sys/geom/geom_flashmap.c
+++ sys/geom/geom_flashmap.c
@@ -210,7 +210,7 @@
 {
 
 	g_topology_lock();
-	if (g_flashmap_slicers[type].slicer == NULL || force == TRUE)
+	if (g_flashmap_slicers[type].slicer == NULL || force)
 		g_flashmap_slicers[type].slicer = slicer;
 	g_topology_unlock();
 }