diff --git a/grc/CMakeLists.txt b/grc/CMakeLists.txt
index 2b94539..101a121 100644
--- a/grc/CMakeLists.txt
+++ b/grc/CMakeLists.txt
@@ -24,5 +24,6 @@
 add_subdirectory(flow_control)
 add_subdirectory(misc_utils)
 install(FILES
-    gsm_block_tree.xml DESTINATION share/gnuradio/grc/blocks
+    gsm_block_tree.xml
+    grgsm_uplink_downlink_filter.xml DESTINATION share/gnuradio/grc/blocks
 )