1 files changed, 5 insertions, 1 deletions

diff --git a/src/regress/lib/libc/malloc/malloc_general/malloc_general.c b/src/regress/lib/libc/malloc/malloc_general/malloc_general.c
index 51bfb03a34..b90e97ad15 100644
--- a/src/regress/lib/libc/malloc/malloc_general/malloc_general.c
+++ b/src/regress/lib/libc/malloc/malloc_general/malloc_general.c
@@ -60,11 +60,15 @@ main(int argc, char *argv[])
         int count, p, i;
         void * q;
         size_t sz;
+        char mo[20];
 
         if (argc == 1)
                 errx(1, "usage: malloc_options");
 
-        malloc_options = argv[1];
+        /* first reset flags that might be set by env or sysctl */
+        strlcpy(mo, "cfgju", sizeof(mo));
+        strlcat(mo, argv[1], sizeof(mo));
+        malloc_options = mo;
 
         for (count = 0; count < 800000; count++) {
                 if (count % 10000 == 0) {