docs: fix several doxygen errors
Change-Id: If86c628b2b794cba0e3697bfe1d88ce752104ce1
Refs: #3210
diff --git a/src/interest.hpp b/src/interest.hpp
index 686f0a0..b87cd50 100644
--- a/src/interest.hpp
+++ b/src/interest.hpp
@@ -180,7 +180,7 @@
/**
* @brief Set the selected delegation
- * @param delegation The index of the selected delegation
+ * @param delegationIndex The index of the selected delegation
* @throw Error Link is not set.
* @throw std::out_of_range @p delegationIndex is out of bound in Link.
*/