diff --git a/src/gallium/drivers/nouveau/nv50/nv50_surface.c b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
index 4db73cb7fef..84646f6adb1 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_surface.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
@@ -1756,6 +1756,7 @@ nv50_blitter_destroy(struct nv50_screen *screen)
       }
    }
 
+   pipe_mutex_destroy(blitter->mutex);
    FREE(blitter);
 }
 
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_surface.c b/src/gallium/drivers/nouveau/nvc0/nvc0_surface.c
index 49577969d3d..09b31153ab8 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_surface.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_surface.c
@@ -1644,6 +1644,7 @@ nvc0_blitter_destroy(struct nvc0_screen *screen)
       }
    }
 
+   pipe_mutex_destroy(blitter->mutex);
    FREE(blitter);
 }