Index: head/contrib/netbsd-tests/lib/libc/string/t_memmem.c
===================================================================
--- head/contrib/netbsd-tests/lib/libc/string/t_memmem.c
+++ head/contrib/netbsd-tests/lib/libc/string/t_memmem.c
@@ -51,6 +51,8 @@
 int lp6 = 1;
 char p7[] = "654";
 int lp7 = 3;
+char p8[] = "89abc";
+int lp8 = 5;
 
 char b0[] = "";
 int lb0 = 0;
@@ -94,6 +96,7 @@
 
 	expect(memmem(b2, lb2, p4, lp4) == NULL);
 	expect(memmem(b2, lb2, p7, lp7) == NULL);
+	expect(memmem(b2, lb2, p8, lp8) == NULL);
 }
 
 ATF_TP_ADD_TCS(tp)