diff --git a/bsd-user/elfload.c b/bsd-user/elfload.c
index ed25e85..678f3e6 100644
--- a/bsd-user/elfload.c
+++ b/bsd-user/elfload.c
@@ -1014,7 +1014,7 @@
     key.st_value = orig_addr;
 
     sym = bsearch(&key, syms, s->disas_num_syms, sizeof(*syms), symfind);
-    if (sym != 0) {
+    if (sym != NULL) {
         return s->disas_strtab + sym->st_name;
     }