diff --git a/api/api.c b/api/api.c
index c5f6edb83f..6b114f077f 100644
--- a/api/api.c
+++ b/api/api.c
@@ -661,6 +661,7 @@ void api_init(void)
 		return;
 	}
 
+	setenv_hex("api_address", (unsigned long)sig);
 	debugf("API sig @ 0x%08x\n", sig);
 	memcpy(sig->magic, API_SIG_MAGIC, 8);
 	sig->version = API_SIG_VERSION;