diff --git a/install/stringnames.txt b/install/stringnames.txt
index 3a7be3eb639..9913ac28e76 100644
--- a/install/stringnames.txt
+++ b/install/stringnames.txt
@@ -183,6 +183,8 @@ phpversion
 phpversionerror
 phpversionhelp
 postgres7
+prefixcannotbeempty
+prefixtoolong
 previous
 qtyperqpwillberemoved
 qtyperqpwillberemovedanyway