diff --git a/include/spdlog/logger.h b/include/spdlog/logger.h
index 65c9a392..bbd897e0 100644
--- a/include/spdlog/logger.h
+++ b/include/spdlog/logger.h
@@ -103,16 +103,15 @@ public:
     }
 
     // log with no format string, just string message
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void log(source_loc loc, level::level_enum lvl, S msg)
+    void log(source_loc loc, level::level_enum lvl, string_view_t msg)
     {
         if (should_log(lvl))
         {
             sink_it_(details::log_msg(loc, name_, lvl, msg));
         }
     }
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void log(level::level_enum lvl, S msg)
+
+    void log(level::level_enum lvl, string_view_t msg)
     {
         if (should_log(lvl))
         {
@@ -169,38 +168,36 @@ public:
     }
 
     // log functions with no format string, just string
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void trace(const S msg, source_loc loc = source_loc::current())
+
+    void trace(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::trace, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void debug(const S msg, source_loc loc = source_loc::current())
+
+    void debug(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::debug, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void info(const S msg, source_loc loc = source_loc::current())
+
+    void info(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::info, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void warn(const S msg, source_loc loc = source_loc::current())
+
+    void warn(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::warn, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void error(const S msg, source_loc loc = source_loc::current())
+    void error(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::err, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void critical(const S msg, source_loc loc = source_loc::current())
+    void critical(string_view_t msg, source_loc loc = source_loc::current())
     {
         log(loc, level::critical, msg);
     }
@@ -242,38 +239,32 @@ public:
     }
 
     // log functions with no format string, just string
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void trace(const S msg)
+    void trace(string_view_t msg)
     {
         log(level::trace, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void debug(const S msg)
+    void debug(string_view_t msg)
     {
         log(level::debug, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void info(const S msg)
+    void info(string_view_t msg)
     {
         log(level::info, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void warn(const S msg)
+    inline void warn(string_view_t msg)
     {
         log(level::warn, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void error(const S msg)
+    void error(string_view_t msg)
     {
         log(level::err, msg);
     }
 
-    template<typename S, typename = is_convertible_to_sv<S>>
-    void critical(const S msg)
+    void critical(string_view_t msg)
     {
         log(level::critical, msg);
     }
diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index cf141aa2..074751a5 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -266,38 +266,32 @@ void critical(format_string_t<Args...> fmt, Args &&...args)
 }
 
 // log functions with no format string, just string
-template<typename S, typename = is_convertible_to_sv<S>>
-void trace(const S msg)
+inline void trace(string_view_t msg)
 {
     log(level::trace, msg);
 }
 
-template<typename S, typename = is_convertible_to_sv<S>>
-void debug(const S msg)
+inline void debug(string_view_t msg)
 {
     log(level::debug, msg);
 }
 
-template<typename S, typename = is_convertible_to_sv<S>>
-void info(const S msg)
+inline void info(string_view_t msg)
 {
     log(level::info, msg);
 }
 
-template<typename S, typename = is_convertible_to_sv<S>>
-void warn(const S msg)
+inline void warn(string_view_t msg)
 {
     log(level::warn, msg);
 }
 
-template<typename S, typename = is_convertible_to_sv<S>>
-void error(const S msg)
+inline void error(string_view_t msg)
 {
     log(level::err, msg);
 }
 
-template<typename S, typename = is_convertible_to_sv<S>>
-void critical(const S msg)
+inline void critical(string_view_t msg)
 {
     log(level::critical, msg);
 }