diff --git a/mach/proto/ncg/gencode.c b/mach/proto/ncg/gencode.c
index ca45bc008..7b57d9186 100644
--- a/mach/proto/ncg/gencode.c
+++ b/mach/proto/ncg/gencode.c
@@ -90,7 +90,7 @@ string ad2str(ad) addr_t ad; {
 		else
 			return(mystrcpy(ad.ea_str));
 	}
-	sprintf(buf,"%s%c%ld",ad.ea_str,ad.ea_off>=0 ? '+' : '-',(long)ad.ea_off);
+	sprintf(buf,"%s%c%ld",ad.ea_str,ad.ea_off>=0 ? '+' : ' ',(long)ad.ea_off);
 	return(mystrcpy(buf));
 }