diff --git a/src/spells/spells.c b/src/spells/spells.c
index 8221cdf94..dead1c0cc 100644
--- a/src/spells/spells.c
+++ b/src/spells/spells.c
@@ -6590,7 +6590,7 @@ static int sp_wdwpyramid(castorder * co)
 }
 
 typedef struct spelldata {
-  spellid_t id;
+  unsigned int id;
   const char *sname;
   spell_f sp_function;
   void (*patzer) (castorder *);