diff --git a/projects/clr/rocclr/runtime/CMakeLists.txt b/projects/clr/rocclr/runtime/CMakeLists.txt
index 2c9dfd6800..2edd70fbab 100644
--- a/projects/clr/rocclr/runtime/CMakeLists.txt
+++ b/projects/clr/rocclr/runtime/CMakeLists.txt
@@ -58,6 +58,7 @@ add_library(oclruntime OBJECT
   device/devkernel.cpp
   device/devwavelimiter.cpp
   device/devprogram.cpp
+  platform/activity.cpp
   platform/kernel.cpp
   platform/context.cpp
   platform/command.cpp