diff --git a/src/util/regex/regex-component-matcher.hpp b/src/util/regex/regex-component-matcher.hpp
index 288f71f..08cefdb 100644
--- a/src/util/regex/regex-component-matcher.hpp
+++ b/src/util/regex/regex-component-matcher.hpp
@@ -47,7 +47,7 @@
   virtual
   ~RegexComponentMatcher()
   {
-  };
+  }
 
   virtual bool
   match(const Name& name, size_t offset, size_t len = 1);
@@ -55,7 +55,6 @@
 protected:
   /**
    * @brief Compile the regular expression to generate the more matchers when necessary
-   * @returns true if compiling succeeds
    */
   virtual void
   compile();
diff --git a/src/util/regex/regex-component-set-matcher.hpp b/src/util/regex/regex-component-set-matcher.hpp
index 39bb563..7bf5a5e 100644
--- a/src/util/regex/regex-component-set-matcher.hpp
+++ b/src/util/regex/regex-component-set-matcher.hpp
@@ -52,7 +52,6 @@
 protected:
   /**
    * @brief Compile the regular expression to generate the more matchers when necessary
-   * @returns true if compiling succeeds
    */
   virtual void
   compile();
diff --git a/src/util/regex/regex-matcher.hpp b/src/util/regex/regex-matcher.hpp
index 4dcaeb4..9b5d26f 100644
--- a/src/util/regex/regex-matcher.hpp
+++ b/src/util/regex/regex-matcher.hpp
@@ -83,7 +83,6 @@
 protected:
   /**
    * @brief Compile the regular expression to generate the more matchers when necessary
-   * @returns true if compiling succeeds
    */
   virtual void
   compile() = 0;
diff --git a/src/util/regex/regex-repeat-matcher.hpp b/src/util/regex/regex-repeat-matcher.hpp
index 4130637..3baaa46 100644
--- a/src/util/regex/regex-repeat-matcher.hpp
+++ b/src/util/regex/regex-repeat-matcher.hpp
@@ -50,7 +50,6 @@
 protected:
   /**
    * @brief Compile the regular expression to generate the more matchers when necessary
-   * @returns true if compiling succeeds
    */
   virtual void
   compile();
diff --git a/src/util/sqlite3-statement.hpp b/src/util/sqlite3-statement.hpp
index dbad1d2..82480d9 100644
--- a/src/util/sqlite3-statement.hpp
+++ b/src/util/sqlite3-statement.hpp
@@ -56,7 +56,7 @@
    *
    * @param index The binding position
    * @param value The pointer of the binding string
-   * @param value The size of the binding string
+   * @param size The size of the binding string
    * @param destructor SQLite3 destructor, e.g., SQLITE_TRANSIENT
    * @return SQLite result value.
    */
@@ -79,7 +79,7 @@
    *
    * @param index The binding position
    * @param value The pointer of the blob
-   * @param value The size of the blob
+   * @param size The size of the blob
    * @param destructor SQLite3 destructor, e.g., SQLITE_TRANSIENT
    * @return SQLite result value.
    */