diff --git a/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx b/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
index a5541de340..ccbedf7141 100644
--- a/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
+++ b/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
@@ -546,7 +546,8 @@ do_clear(const RenderBuffer &buffer) {
           if (FAILED(hr2)) {
             dxgsg8_cat.error()
               << "Unable to clear depth buffer; removing.\n";
-            _current_properties->set_depth_bits(0);
+            // This is really hacky code.
+            ((FrameBufferProperties *)_current_properties)->set_depth_bits(0);
           }
         }
         if (buffer_type & RenderBuffer::T_stencil) {
@@ -556,7 +557,8 @@ do_clear(const RenderBuffer &buffer) {
           if (FAILED(hr2)) {
             dxgsg8_cat.error()
               << "Unable to clear stencil buffer; removing.\n";
-            _current_properties->set_stencil_bits(0);
+            // This is really hacky code.
+            ((FrameBufferProperties *)_current_properties)->set_stencil_bits(0);
           }
         }
       }
diff --git a/panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx b/panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx
index fc1508bcbc..1faf934246 100755
--- a/panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx
+++ b/panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx
@@ -838,7 +838,8 @@ do_clear(const RenderBuffer &buffer) {
           if (FAILED(hr2)) {
             dxgsg9_cat.error()
               << "Unable to clear depth buffer; removing.\n";
-            _current_properties->set_depth_bits(0);
+            // This is really hacky code.
+            ((FrameBufferProperties *)_current_properties)->set_depth_bits(0);
           }
         }
         if (buffer_type & RenderBuffer::T_stencil) {
@@ -848,7 +849,8 @@ do_clear(const RenderBuffer &buffer) {
           if (FAILED(hr2)) {
             dxgsg9_cat.error()
               << "Unable to clear stencil buffer; removing.\n";
-            _current_properties->set_stencil_bits(0);
+            // This is really hacky code.
+            ((FrameBufferProperties *)_current_properties)->set_stencil_bits(0);
           }
         }
       }