diff --git a/fpga/lib/CMakeLists.txt b/fpga/lib/CMakeLists.txt
index bc7fd9208..e25ded1a8 100644
--- a/fpga/lib/CMakeLists.txt
+++ b/fpga/lib/CMakeLists.txt
@@ -28,6 +28,7 @@ set(SOURCES
     ips/timer.cpp
     ips/i2c.cpp
     ips/register.cpp
+    ips/axis_cache.cpp
 
     ips/rtds2gpu/rtds2gpu.cpp
     ips/rtds2gpu/xrtds2gpu.c