diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 61f0858..1ddab6d 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -54,6 +54,8 @@
     misc_utils/burst_source_impl.cc
     misc_utils/burst_sink_qa_impl.cc
     misc_utils/burst_source_qa_impl.cc
+    misc_utils/message_file_sink_impl.cc
+    misc_utils/message_file_source_impl.cc
     decryption/decryption_impl.cc )
 
 add_library(gnuradio-grgsm SHARED ${grgsm_sources})