diff --git a/util/ack/ack.h b/util/ack/ack.h
index e18c1334..420fa0a5 100644
--- a/util/ack/ack.h
+++ b/util/ack/ack.h
@@ -79,7 +79,7 @@ extern int  creat();
 /* Own routines */
 enum f_path getpath();
 enum f_path scan_end();
-extern int  noodstop();
+extern void noodstop();
 extern char *getvar();
 extern char *keeps();
 extern char *basename();
diff --git a/util/ack/proto.make b/util/ack/proto.make
index e2c4d564..a7185ed1 100644
--- a/util/ack/proto.make
+++ b/util/ack/proto.make
@@ -51,7 +51,7 @@ FE=fe
 INTABLES=sun3
 LNTABLES=acc apc abc ocm m2 f2c vax4 i86 i386 m68k2 m68k4 pmds pmds4 mantra \
 	m68020 z8000 pdp em22 em24 em44 6500 6800 6805 6809 i80 ns s2650 z80 \
-	sun2 xenix3 minix minixST sparc  sparc_solaris arm
+	sun2 xenix3 minix minixST sparc sparc_solaris arm
 INCLUDES=-I$(TARGET_HOME)/h -I$(TARGET_HOME)/config -I$(SRC_DIR)
 CFLAGS= $(INCLUDES) $(COPTIONS)
 UCFLAGS= $(INCLUDES) $(UCOPTIONS)
diff --git a/util/ack/util.c b/util/ack/util.c
index 445b08a7..a5f1508c 100644
--- a/util/ack/util.c
+++ b/util/ack/util.c
@@ -140,6 +140,7 @@ do_flush() {
 	fflush(stderr) ;
 }
 
+void
 noodstop() {
 	quit(-3) ;
 }