diff --git a/usr.bin/crunch/crunchgen/crunchgen.c b/usr.bin/crunch/crunchgen/crunchgen.c
index dcaff9d7a91f..a036de76c47d 100644
--- a/usr.bin/crunch/crunchgen/crunchgen.c
+++ b/usr.bin/crunch/crunchgen/crunchgen.c
@@ -102,7 +102,7 @@ static int goterror = 0;
 
 static const char *pname = "crunchgen";
 
-static int verbose, readcache, useobjs, oneobj, pie;	/* options */
+static int verbose, readcache, useobjs, oneobj, pie, sanitizer;	/* options */
 static int reading_cache;
 static char *machine;
 static char *makeobjdirprefix;
@@ -157,13 +157,14 @@ main(int argc, char **argv)
     if (argc > 0)
 	pname = argv[0];
 
-    while ((optc = getopt(argc, argv, "m:c:d:e:fopqD:L:Ov:")) != -1) {
+    while ((optc = getopt(argc, argv, "m:c:d:e:fopqsD:L:Ov:")) != -1) {
 	switch(optc) {
 	case 'f':	readcache = 0; break;
 	case 'p':	pie = 1; break;
 	case 'q':	verbose = 0; break;
 	case 'O':	oneobj = 0; break;
 	case 'o':       useobjs = 1, oneobj = 0; break;
+	case 's':       sanitizer = 1; break;
 
 	case 'm':	(void)estrlcpy(outmkname, optarg, sizeof(outmkname)); break;
 	case 'c':	(void)estrlcpy(outcfname, optarg, sizeof(outcfname)); break;
@@ -922,6 +923,8 @@ top_makefile_rules(FILE *outmk)
 
     if (!pie)
 	    fprintf(outmk, "NOPIE=\n");
+    if (!sanitizer)
+	    fprintf(outmk, "NOSANITIZER=\n");
     fprintf(outmk, "NOMAN=\n\n");
 
     fprintf(outmk, "DBG=%s\n", dbg);