diff --git a/CMakeLists.txt b/CMakeLists.txt
index 080ccb8fc..859ea7766 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -409,6 +409,8 @@ set (wsjt_FSRCS
   lib/msk144d.f90
   lib/msk144d2.f90
   lib/msk144decodeframe.f90
+  lib/msk144spd.f90
+  lib/msk144sync.f90
   lib/msk144_decode.f90
   lib/mskrtd.f90
   lib/msk144sim.f90