diff --git a/libsrc/geos-cbm/system/Makefile b/libsrc/geos-cbm/system/Makefile
index a39ad6e4c..a0cea1497 100644
--- a/libsrc/geos-cbm/system/Makefile
+++ b/libsrc/geos-cbm/system/Makefile
@@ -5,8 +5,7 @@
 #--------------------------------------------------------------------------
 # Object files
 
-S_OBJS  +=      ctype.o			\
-		get_ostype.o		\
+S_OBJS  +=      get_ostype.o		\
 		getserialnumber.o	\
 		initdoneio.o		\
 		setdevice.o		\