diff --git a/plugins/system/debug/debug.xml b/plugins/system/debug/debug.xml
index c2d0803bf113a..aa2fd7240677c 100644
--- a/plugins/system/debug/debug.xml
+++ b/plugins/system/debug/debug.xml
@@ -98,7 +98,7 @@
 					description="PLG_DEBUG_FIELD_LOG_CATEGORIES_DESC"
 				/>
 
-				<field name="log_category_mode" type="radio" default="0" class="btn-group"
+				<field name="log_category_mode" type="radio" default="0" class="btn-group btn-group-yesno"
 					label="PLG_DEBUG_FIELD_LOG_CATEGORY_MODE_LABEL"
 					description="PLG_DEBUG_FIELD_LOG_CATEGORY_MODE_DESC"
 				>