diff --git a/SOPE/GDLContentStore/ChangeLog b/SOPE/GDLContentStore/ChangeLog
index 377624de2..0fa2d0883 100644
--- a/SOPE/GDLContentStore/ChangeLog
+++ b/SOPE/GDLContentStore/ChangeLog
@@ -1,3 +1,8 @@
+2012-01-20  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* GCSSpecialQueries.m (-createSessionsFolderWithName:): declare
+	c_id as primary key to make sure it's indexed.
+
 2011-12-08  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* GCSFolder.m (-releaseChannel:): perform the debug logging BEFORE
diff --git a/SOPE/GDLContentStore/GCSSpecialQueries.m b/SOPE/GDLContentStore/GCSSpecialQueries.m
index 84468906c..7bd771c7c 100644
--- a/SOPE/GDLContentStore/GCSSpecialQueries.m
+++ b/SOPE/GDLContentStore/GCSSpecialQueries.m
@@ -190,7 +190,7 @@
 {
   static NSString *sqlFolderFormat
     = (@"CREATE TABLE %@ (" 
-       @" c_id VARCHAR(255) NOT NULL,"
+       @" c_id VARCHAR(255) NOT NULL PRIMARY KEY,"
        @" c_value VARCHAR(255) NOT NULL,"
        @" c_creationdate INT4 NOT NULL,"
        @" c_lastseen INT4 NOT NULL)");
@@ -284,7 +284,7 @@
 {
   static NSString *sqlFolderFormat
     = (@"CREATE TABLE %@ (" 
-       @" c_id VARCHAR(255) NOT NULL,"
+       @" c_id VARCHAR(255) NOT NULL PRIMARY KEY,"
        @" c_value VARCHAR(255) NOT NULL,"
        @" c_creationdate INT NOT NULL,"
        @" c_lastseen INT NOT NULL)");
@@ -377,7 +377,7 @@
 {
   static NSString *sqlFolderFormat
     = (@"CREATE TABLE %@ (" 
-       @" c_id VARCHAR2(255) NOT NULL,"
+       @" c_id VARCHAR2(255) NOT NULL PRIMARY KEY,"
        @" c_value VARCHAR2(255) NOT NULL,"
        @" c_creationdate INTEGER NOT NULL,"
        @" c_lastseen INTEGER NOT NULL)");