diff --git a/cde/programs/dtwm/Imakefile b/cde/programs/dtwm/Imakefile
index 258127a47..74ec914de 100644
--- a/cde/programs/dtwm/Imakefile
+++ b/cde/programs/dtwm/Imakefile
@@ -33,7 +33,7 @@ SRCSXM = \
         WmResCvt.c      WmResParse.c    WmResource.c \
         WmSignal.c      WmWinConf.c     WmWinInfo.c \
         WmWinList.c     WmWinState.c    version.c \
-        WmMultihead.c
+        WmMultiHead.c
 
 SRCSDT = \
         Button.c        Callback.c      Clock.c \