diff --git a/dlls/wined3d/cs.c b/dlls/wined3d/cs.c
index 221a79faa0c..76db5b5184e 100644
--- a/dlls/wined3d/cs.c
+++ b/dlls/wined3d/cs.c
@@ -3594,6 +3594,19 @@ static void wined3d_cs_packet_decref_objects(const struct wined3d_cs_packet *pac
             break;
         }
 
+        case WINED3D_CS_OP_SET_CONSTANT_BUFFERS:
+        {
+            struct wined3d_cs_set_constant_buffers *op;
+
+            op = (struct wined3d_cs_set_constant_buffers *)packet->data;
+            for (i = 0; i < op->count; ++i)
+            {
+                if (op->buffers[i].buffer)
+                    wined3d_buffer_decref(op->buffers[i].buffer);
+            }
+            break;
+        }
+
         default:
             break;
     }
@@ -3706,6 +3719,19 @@ static void wined3d_cs_packet_incref_objects(struct wined3d_cs_packet *packet)
             break;
         }
 
+        case WINED3D_CS_OP_SET_CONSTANT_BUFFERS:
+        {
+            struct wined3d_cs_set_constant_buffers *op;
+
+            op = (struct wined3d_cs_set_constant_buffers *)packet->data;
+            for (i = 0; i < op->count; ++i)
+            {
+                if (op->buffers[i].buffer)
+                    wined3d_buffer_incref(op->buffers[i].buffer);
+            }
+            break;
+        }
+
         default:
             break;
     }