context DOC fix coverage of the contextoptions group
diff --git a/src/libyang.h.in b/src/libyang.h.in
index b70221e..fcabf18 100644
--- a/src/libyang.h.in
+++ b/src/libyang.h.in
@@ -1116,6 +1116,7 @@
  * @ingroup context
  *
  * Options to change context behavior.
+ * @{
  */
 
 #define LY_CTX_ALLIMPLEMENTED 0x01 /**< All the imports of the schema being parsed are treated implemented. */