diff --git a/common/os_calls.c b/common/os_calls.c
index 80b2d235..16b89201 100644
--- a/common/os_calls.c
+++ b/common/os_calls.c
@@ -2906,9 +2906,13 @@ void APP_CC
 g_clearenv(void)
 {
 #if defined(_WIN32)
+#else
+#if defined(BSD)
+    environ[0] = 0;
 #else
     environ = 0;
 #endif
+#endif
 }
 
 /*****************************************************************************/