diff --git a/racket/src/ChezScheme/c/stats.c b/racket/src/ChezScheme/c/stats.c
index 43b577e11d..7d6a396910 100644
--- a/racket/src/ChezScheme/c/stats.c
+++ b/racket/src/ChezScheme/c/stats.c
@@ -512,7 +512,7 @@ static long adjust_time_zone(ptr dtvec, struct tm *tmxp, ptr given_tzoff) {
     }
   }
 #else
-# ifdef defined(SOLARIS)
+# if defined(SOLARIS)
   tzoff = timezone;
 # else
   tzoff = tmxp->tm_gmtoff;