diff --git a/include/environment.h b/include/environment.h
index 2c8c4f1..20775da 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -154,6 +154,8 @@
 	unsigned char	data[ENV_SIZE]; /* Environment data		*/
 } env_t;
 
+extern const unsigned char default_environment[];
+
 #ifndef DO_DEPS_ONLY
 
 #include <search.h>