diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index dc05f68..cab727f 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -68,6 +68,9 @@
 /************************************************************************
 ************************************************************************/
 
+/* Function that returns a character from the environment */
+extern uchar (*env_get_char)(int);
+
 /* Function that returns a pointer to a value from the environment */
 /* (Only memory version supported / needed). */
 extern uchar *env_get_addr(int);