diff --git a/src/makemon.c b/src/makemon.c
index edd0b6be7..7c11e85e6 100644
--- a/src/makemon.c
+++ b/src/makemon.c
@@ -23,6 +23,7 @@ STATIC_DCL void FDECL(m_initgrp, (struct monst *, int, int, int));
 STATIC_DCL void FDECL(m_initthrow, (struct monst *, int, int));
 STATIC_DCL void FDECL(m_initweap, (struct monst *));
 STATIC_DCL void FDECL(m_initinv, (struct monst *));
+STATIC_DCL boolean FDECL(makemon_rnd_goodpos, (struct monst *, unsigned, coord *));
 
 extern const int monstr[];