diff --git a/openbsd-compat/setenv.c b/openbsd-compat/setenv.c
index 373b701d9..86954c284 100644
--- a/openbsd-compat/setenv.c
+++ b/openbsd-compat/setenv.c
@@ -39,7 +39,9 @@
 #include <string.h>
 
 extern char **environ;
+#ifndef HAVE_SETENV
 static char **lastenv;				/* last value of environ */
+#endif
 
 /* OpenSSH Portable: __findenv is from getenv.c rev 1.8, made static */
 /*