diff --git a/include/spdlog/common-inl.h b/include/spdlog/common-inl.h
index 3a6f2edd..40e746f2 100644
--- a/include/spdlog/common-inl.h
+++ b/include/spdlog/common-inl.h
@@ -1,4 +1,23 @@
 // Copyright(c) 2015-present Gabi Melman & spdlog contributors.
 // Distributed under the MIT License (http://opensource.org/licenses/MIT)
 
-#pragma  once
\ No newline at end of file
+#pragma  once
+
+
+SPDLOG_INLINE spdlog::spdlog_ex::spdlog_ex(std::string msg)
+: msg_(std::move(msg))
+{
+}
+
+SPDLOG_INLINE spdlog::spdlog_ex::spdlog_ex(const std::string &msg, int last_errno)
+{
+    fmt::memory_buffer outbuf;
+    fmt::format_system_error(outbuf, last_errno, msg);
+    msg_ = fmt::to_string(outbuf);
+}
+
+SPDLOG_INLINE const char *spdlog::spdlog_ex::what() const SPDLOG_NOEXCEPT
+{
+    return msg_.c_str();
+}
+
diff --git a/include/spdlog/common.h b/include/spdlog/common.h
index 0dd010a5..64eff8d1 100644
--- a/include/spdlog/common.h
+++ b/include/spdlog/common.h
@@ -191,22 +191,9 @@ enum class pattern_time_type
 class spdlog_ex : public std::exception
 {
 public:
-    explicit spdlog_ex(std::string msg)
-        : msg_(std::move(msg))
-    {
-    }
-
-    spdlog_ex(const std::string &msg, int last_errno)
-    {
-        fmt::memory_buffer outbuf;
-        fmt::format_system_error(outbuf, last_errno, msg);
-        msg_ = fmt::to_string(outbuf);
-    }
-
-    const char *what() const SPDLOG_NOEXCEPT override
-    {
-        return msg_.c_str();
-    }
+    explicit spdlog_ex(std::string msg);
+    spdlog_ex(const std::string &msg, int last_errno);
+    const char *what() const SPDLOG_NOEXCEPT override;
 
 private:
     std::string msg_;
@@ -246,3 +233,7 @@ std::unique_ptr<T> make_unique(Args &&... args)
 #endif
 } // namespace details
 } // namespace spdlog
+
+#ifndef SPDLOG_STATIC_LIB
+#include "commont-inl.h"
+#endif
\ No newline at end of file
diff --git a/src/spdlog.cpp b/src/spdlog.cpp
index c41ca6e9..465812c5 100644
--- a/src/spdlog.cpp
+++ b/src/spdlog.cpp
@@ -1,7 +1,11 @@
 // Copyright(c) 2015-present Gabi Melman & spdlog contributors.
 // Distributed under the MIT License (http://opensource.org/licenses/MIT)
 
-#include "spdlog/spdlog.h"
+#include <mutex>
+
+#include "spdlog/common.h"
+#include "spdlog/common-inl.h"
+
 
 #include "spdlog/details/null_mutex.h"