diff --git a/mach/sun3/cv/Xcv.c b/mach/sun3/cv/Xcv.c
index b35ed642f..e6b94ae8c 100644
--- a/mach/sun3/cv/Xcv.c
+++ b/mach/sun3/cv/Xcv.c
@@ -6,7 +6,7 @@
  */
 
 /*
- * Convert SUN-3 object format to ACK object format
+ * Convert SUN-3 object format to ACK object format. Only on Sun-3
  */
 #include <stdio.h>
 #include <out.h>
diff --git a/mach/sun3/cv/proto.make b/mach/sun3/cv/proto.make
index e2d2134c9..529dae5eb 100644
--- a/mach/sun3/cv/proto.make
+++ b/mach/sun3/cv/proto.make
@@ -6,7 +6,7 @@ OBJLIB=$(TARGET_HOME)/modules/lib/libobject.$(LIBSUF)
 
 SRC_DIR = $(SRC_HOME)/mach/sun3/cv
 
-all:	cv Xcv
+all:	cv
 
 cv:	cv.$(SUF)
 	$(CC) $(LDOPTIONS) -o cv cv.$(SUF) $(OBJLIB)
@@ -22,18 +22,15 @@ Xcv.$(SUF):	$(SRC_DIR)/Xcv.c
 
 install:	all
 	cp cv $(TARGET_HOME)/lib.bin/sun3/cv
-	cp Xcv $(TARGET_HOME)/lib.bin/sun3/Xcv
 
 cmp:	all
 	-cmp cv $(TARGET_HOME)/lib.bin/sun3/cv
-	-cmp Xcv $(TARGET_HOME)/lib.bin/sun3/Xcv
 
 clean:
 	rm -f *.(SUF) Out
 
 lint:
 	$(LINT) $(LINTOPTIONS) -DMACH=2 -I$(TARGET_HOME)/h $(SRC_DIR)/cv.c $(UTIL_HOME)/modules/lib/$(LINTPREF)object.$(LINTSUF)
-	$(LINT) $(LINTOPTIONS) -DMACH=2 -I$(TARGET_HOME)/h $(SRC_DIR)/Xcv.c $(UTIL_HOME)/modules/lib/$(LINTPREF)object.$(LINTSUF)
 
 pr:
 	@pr $(SRC_DIR)/proto.make $(SRC_DIR)/cv.c $(SRC_DIR)/Xcv.c