1 files changed, 1 insertions, 1 deletions
diff --git a/bsd/drm.h b/bsd/drm.h
index d3c9f158..d1d66943 100644
--- a/bsd/drm.h
+++ b/bsd/drm.h
@@ -348,7 +348,7 @@ typedef struct drm_irq_busid {
 typedef enum {
     _DRM_VBLANK_ABSOLUTE = 0x0,		/* Wait for specific vblank sequence number */
     _DRM_VBLANK_RELATIVE = 0x1,		/* Wait for given number of vblanks */
-    _DRM_VBLANK_SIGNAL   = 0x80000000	/* Send signal instead of blocking */
+    _DRM_VBLANK_SIGNAL   = 0x40000000	/* Send signal instead of blocking */
 } drm_vblank_seq_type_t;
 
 #define _DRM_VBLANK_FLAGS_MASK _DRM_VBLANK_SIGNAL