diff --git a/src/kits/media/ParameterWeb.cpp b/src/kits/media/ParameterWeb.cpp
index a04effc0dd..90d3fdefda 100644
--- a/src/kits/media/ParameterWeb.cpp
+++ b/src/kits/media/ParameterWeb.cpp
@@ -1170,6 +1170,7 @@ BParameterGroup::Unflatten(type_code code, const void *buffer, ssize_t size)
 		skip_in_buffer(&buffer, parameterSize);
 
 		// add the item to the list
+		parameter->mGroup = this;
 		mControls->AddItem(parameter);
 
 		// add it's old pointer value to the RefFix list kept by the owner web