diff --git a/subversion/libsvn_wc/wc-metadata.sql b/subversion/libsvn_wc/wc-metadata.sql
index e34cf14..5dd7294 100644
--- a/subversion/libsvn_wc/wc-metadata.sql
+++ b/subversion/libsvn_wc/wc-metadata.sql
@@ -636,7 +636,7 @@
 
 CREATE INDEX IF NOT EXISTS I_PRISTINE_MD5 ON PRISTINE (md5_checksum);
 
-UPDATE nodes SET presence = "server-excluded" WHERE presence = "absent";
+UPDATE nodes SET presence = 'server-excluded' WHERE presence = 'absent';
 
 /* Just to be sure clear out file external skels from pre 1.7.0 development
    working copies that were never updated by 1.7.0+ style clients */