diff --git a/blankie/escape.cpp b/blankie/escape.cpp
index 6013ff1..fe3492a 100644
--- a/blankie/escape.cpp
+++ b/blankie/escape.cpp
@@ -27,8 +27,8 @@ std::string escape(const std::string& in) {
     return out;
 }
 
-}; // namespace html
-}; // namespace blankie
+} // namespace html
+} // namespace blankie
 
 static inline const char* get_replacement(char c) {
     switch (c) {
diff --git a/blankie/murl.cpp b/blankie/murl.cpp
index 9d8ebc8..0c93405 100644
--- a/blankie/murl.cpp
+++ b/blankie/murl.cpp
@@ -134,8 +134,8 @@ std::string normalize_path(const std::string& str) {
     return res;
 }
 
-}; // namespace murl
-}; // namespace blankie
+} // namespace murl
+} // namespace blankie
 
 static void handle_segment(std::vector<std::string>& segments, const std::string& str, size_t offset, size_t length) {
     if (length == 2 && str[offset] == '.' && str[offset + 1] == '.') {
diff --git a/blankie/serializer.cpp b/blankie/serializer.cpp
index 7a6a951..65bbf88 100644
--- a/blankie/serializer.cpp
+++ b/blankie/serializer.cpp
@@ -48,8 +48,8 @@ std::string Element::serialize() const {
     return out;
 }
 
-}; // namespace html
-}; // namespace blankie
+} // namespace html
+} // namespace blankie
 
 static inline bool is_autoclosing_tag(const char* tag) {
     return !strncmp(tag, "link", 5) || !strncmp(tag, "meta", 5) || !strncmp(tag, "img", 4) || !strncmp(tag, "br", 3);
diff --git a/pixivclient.h b/pixivclient.h
index 23dd385..07ee7cf 100644
--- a/pixivclient.h
+++ b/pixivclient.h
@@ -25,7 +25,7 @@ public:
         this->_message = httplib::to_string(error);
     }
 
-    const constexpr char* what() const noexcept {
+    inline const char* what() const noexcept {
         return this->_message.c_str();
     }
 
@@ -37,7 +37,7 @@ class PixivException : public std::exception {
 public:
     PixivException(int status_, std::string message) : status(status_), _message(std::move(message)) {}
 
-    const constexpr char* what() const noexcept {
+    inline const char* what() const noexcept {
         return this->_message.c_str();
     }