diff --git a/addons/report_crm/report_crm.py b/addons/report_crm/report_crm.py
index bd8ed828091..6acdca96bd7 100644
--- a/addons/report_crm/report_crm.py
+++ b/addons/report_crm/report_crm.py
@@ -51,7 +51,7 @@ class report_crm_case_user(osv.osv):
 		'nbr': fields.integer('# of Cases', readonly=True),
 		'probability': fields.float('Avg. Probability', readonly=True),
 		'state': fields.selection(AVAILABLE_STATES, 'State', size=16, readonly=True),
-		'delay_close': fields.integer('Delay to close', readonly=True),
+		'delay_close': fields.char('Delay to close', readonly=True),
 	}
 	_order = 'name desc, user_id, section_id'
 	def init(self, cr):
@@ -89,7 +89,7 @@ class report_crm_case_categ(osv.osv):
 		'nbr': fields.integer('# of Cases', readonly=True),
 		'probability': fields.float('Avg. Probability', readonly=True),
 		'state': fields.selection(AVAILABLE_STATES, 'State', size=16, readonly=True),
-		'delay_close': fields.integer('Delay Close', readonly=True),
+		'delay_close': fields.char('Delay Close', readonly=True),
 	}
 	_order = 'name desc, categ_id, section_id'
 	def init(self, cr):