diff --git a/src/lisp/Darwin-os.c b/src/lisp/Darwin-os.c
index e1120ab8edef1518e1e2acf22305cbf7960306ec..53d2db591103528e30912205bb4a89aae1ef7a7f 100644
--- a/src/lisp/Darwin-os.c
+++ b/src/lisp/Darwin-os.c
@@ -534,7 +534,7 @@ os_dlsym(const char *sym_name, lispobj lib_list)
     void *sym_addr = 0;
     int offset = sym_name[0] == '_' ? 1 : 0;
 
-#if 1
+#if 0
     if (offset == 0) {
         fprintf(stderr, "sym-name = %s\n", sym_name);
     }