diff --git a/src/lib/update/plague.c b/src/lib/update/plague.c
index 4fd782c5..b0d5be9a 100644
--- a/src/lib/update/plague.c
+++ b/src/lib/update/plague.c
@@ -52,7 +52,7 @@ static int infect_people(struct natstr *, struct sctstr *);
 void
 do_plague(struct sctstr *sp, struct natstr *np, int etu)
 {
-    int pstage, ptime;
+    int pstage, ptime;
     int n;
 
     if (opt_NO_PLAGUE)		/* no plague nothing to do */