diff --git a/addons/account/static/src/js/account_reconciliation_widgets.js b/addons/account/static/src/js/account_reconciliation_widgets.js
index 7051e67ed80..e5a822b0735 100644
--- a/addons/account/static/src/js/account_reconciliation_widgets.js
+++ b/addons/account/static/src/js/account_reconciliation_widgets.js
@@ -59,7 +59,7 @@ then cloning it for each new child.
 
 */
 var abstractReconciliation = Widget.extend(ControlPanelMixin, {
-    className: 'oe_reconciliation o_reconciliation',
+    className: 'o_reconciliation',
 
     events: {
         "click *[rel='do_action']": "doActionClickHandler",
@@ -372,7 +372,7 @@ var abstractReconciliation = Widget.extend(ControlPanelMixin, {
 });
 
 var abstractReconciliationLine = Widget.extend({
-    className: 'oe_reconciliation_line o_reconciliation_line',
+    className: 'o_reconciliation_line',
 
     events: {
         "click .mv_line": "moveLineClickHandler",
@@ -1094,7 +1094,7 @@ var abstractReconciliationLine = Widget.extend({
 });
 
 var bankStatementReconciliation = abstractReconciliation.extend({
-    className: abstractReconciliation.prototype.className + ' oe_bank_statement_reconciliation o_bank_statement_reconciliation',
+    className: abstractReconciliation.prototype.className + ' o_bank_statement_reconciliation',
 
     events: _.defaults({
         "click .statement_name span": "statementNameClickHandler",
@@ -1582,7 +1582,7 @@ var bankStatementReconciliation = abstractReconciliation.extend({
 });
 
 var bankStatementReconciliationLine = abstractReconciliationLine.extend({
-    className: abstractReconciliationLine.prototype.className + ' oe_bank_statement_reconciliation_line o_bank_statement_reconciliation_line',
+    className: abstractReconciliationLine.prototype.className + ' o_bank_statement_reconciliation_line',
 
     events: _.defaults({
         "click .change_partner": "changePartnerClickHandler",
@@ -2086,7 +2086,7 @@ var bankStatementReconciliationLine = abstractReconciliationLine.extend({
 });
 
 var manualReconciliation = abstractReconciliation.extend({
-    className: abstractReconciliation.prototype.className + ' oe_manual_reconciliation o_manual_reconciliation',
+    className: abstractReconciliation.prototype.className + ' o_manual_reconciliation',
 
     events: _.defaults({
         "change input[name='modeselektor']": "modeSelektorHandler",
@@ -2341,7 +2341,7 @@ var manualReconciliation = abstractReconciliation.extend({
 });
 
 var manualReconciliationLine = abstractReconciliationLine.extend({
-    className: abstractReconciliationLine.prototype.className + ' oe_manual_reconciliation_line o_manual_reconciliation_line',
+    className: abstractReconciliationLine.prototype.className + ' o_manual_reconciliation_line',
 
     events: _.defaults({
         "click .accounting_view thead": "headerClickHandler",
diff --git a/addons/account/static/src/less/account_reconciliation.less b/addons/account/static/src/less/account_reconciliation.less
index 59631358ce0..37d5c0e5c2a 100644
--- a/addons/account/static/src/less/account_reconciliation.less
+++ b/addons/account/static/src/less/account_reconciliation.less
@@ -8,7 +8,7 @@
 @aestetic_animation_speed: 300ms;
 
 
-.oe_reconciliation, .o_reconciliation {
+.o_reconciliation {
     -webkit-user-select: none;
     -moz-user-select: none;
     -ms-user-select: none;
@@ -212,7 +212,7 @@
     }
 
     // reconciliationLine widget
-    .oe_reconciliation_line, .o_reconciliation_line {
+    .o_reconciliation_line {
         margin-bottom: 30px;
 
         table {
@@ -589,8 +589,8 @@
     }
 }
 
-.oe_manual_reconciliation, .o_manual_reconciliation {
-    .oe_manual_reconciliation_line, .o_manual_reconciliation_line {
+.o_manual_reconciliation {
+    .o_manual_reconciliation_line {
         .button_reconcile {
             float: right;
             position: relative;