diff --git a/lib/krb5/eai_to_heim_errno.c b/lib/krb5/eai_to_heim_errno.c
index 842abc684..a6e14aba3 100644
--- a/lib/krb5/eai_to_heim_errno.c
+++ b/lib/krb5/eai_to_heim_errno.c
@@ -68,7 +68,7 @@ krb5_eai_to_heim_errno(int eai_errno, int system_error)
     case EAI_NODATA:
 	return HEIM_EAI_NODATA;
 #endif
-#if defined(WSANO_DATA)
+#ifdef WSANO_DATA
     case WSANO_DATA:
 	return HEIM_EAI_NODATA;
 #endif