diff --git a/src/puresize.h b/src/puresize.h
index f413ecbf4f7..5ce857203ec 100644
--- a/src/puresize.h
+++ b/src/puresize.h
@@ -42,7 +42,7 @@ Boston, MA 02111-1307, USA.  */
 #endif
 
 #ifndef BASE_PURESIZE
-#define BASE_PURESIZE (325000 + SYSTEM_PURESIZE_EXTRA + SITELOAD_PURESIZE_EXTRA)
+#define BASE_PURESIZE (350000 + SYSTEM_PURESIZE_EXTRA + SITELOAD_PURESIZE_EXTRA)
 #endif
 
 /* Increase BASE_PURESIZE by a ratio depending on the machine's word size.  */