diff --git a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
index 2bb8ce60c7..80f40afd94 100644
--- a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
+++ b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
@@ -6270,6 +6270,10 @@ set_state_and_transform(const RenderState *target,
     do_issue_color_scale();
     _state_mask.set_bit(color_slot);
     _state_mask.set_bit(color_scale_slot);
+    if (_current_shader_context) {
+      _current_shader_context->issue_parameters(this, Shader::SSD_color);
+      _current_shader_context->issue_parameters(this, Shader::SSD_colorscale);
+    }
   }
 
   int cull_face_slot = CullFaceAttrib::get_class_slot();