diff --git a/base/CMakeLists.txt b/base/CMakeLists.txt
index a947db4d3ec..8da90b1e4cb 100644
--- a/base/CMakeLists.txt
+++ b/base/CMakeLists.txt
@@ -56,7 +56,6 @@ set (srcs
   MAPL_XYGridFactory.F90
   MAPL_NetCDF.F90                       Plain_netCDF_Time.F90
   MAPL_DateTime_Parsing_ESMF.F90	MAPL_ObsUtil.F90
-  #MAPL_ESMF_InfoKeys.F90
   # Orphaned program: should not be in this library.
   # tstqsat.F90
   )