diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index efb34f1c8..34cf9b487 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -23,7 +23,6 @@ add_library (task STATIC CLI2.cpp CLI2.h
                   legacy.cpp
                   nag.cpp
                   recur.cpp
-                  recur2.cpp
                   rules.cpp
                   sort.cpp
                   util.cpp util.h)