diff --git a/cpp/ICWFGM_CommonBase.cpp b/cpp/ICWFGM_CommonBase.cpp
index c7fff14..dffa5d5 100644
--- a/cpp/ICWFGM_CommonBase.cpp
+++ b/cpp/ICWFGM_CommonBase.cpp
@@ -17,6 +17,7 @@
  */
 
 #include "ICWFGM_CommonBase.h"
+#include "ISerializeProto.h"
 
 #include "WTime.h"
 
@@ -307,3 +308,16 @@ HRESULT ICWFGM_CommonBase::put_UserData(const PolymorphicUserData &newVal) {
 	m_userData = newVal;
 	return S_OK;
 }
+
+
+ISerializeProto::DeserializeError::DeserializeError(const std::string& message) :
+	logic_error(message)
+{
+}
+
+
+ISerializeProto::DeserializeError::DeserializeError(const std::string& message, std::uint32_t hr_) :
+	logic_error(message)
+{
+	hr = hr_;
+}
diff --git a/include/ISerializeProto.h b/include/ISerializeProto.h
index a737d3f..99022cc 100644
--- a/include/ISerializeProto.h
+++ b/include/ISerializeProto.h
@@ -75,19 +75,13 @@ class ISerializationData {
 class ISerializeProto {
 public:
 
-	class DeserializeError : public std::logic_error {
+	class FUELCOM_API DeserializeError : public std::logic_error {
 	protected:
 		std::string msg_;
 
 	public:
-		explicit DeserializeError(const std::string& message) :
-			logic_error(message)
-		{}
-		explicit DeserializeError(const std::string& message, std::uint32_t hr_) :
-			logic_error(message)
-		{
-			hr = hr_;
-		}
+		explicit DeserializeError(const std::string& message);
+		explicit DeserializeError(const std::string& message, std::uint32_t hr_);
 
 		std::uint32_t hr = 0;
 	};