diff --git a/src/libs/clangbackendipc/cmbechomessage.cpp b/src/libs/clangbackendipc/cmbechomessage.cpp
index bf75b49262e..aac0168e173 100644
--- a/src/libs/clangbackendipc/cmbechomessage.cpp
+++ b/src/libs/clangbackendipc/cmbechomessage.cpp
@@ -25,42 +25,12 @@
 
 #include "cmbechomessage.h"
 
-#include <QDataStream>
 #include <QDebug>
 
 #include <ostream>
 
 namespace ClangBackEnd {
 
-EchoMessage::EchoMessage(const MessageEnvelop &message)
-    : message_(message)
-{
-}
-
-const MessageEnvelop &EchoMessage::message() const
-{
-    return message_;
-}
-
-QDataStream &operator<<(QDataStream &out, const EchoMessage &message)
-{
-    out << message.message();
-
-    return out;
-}
-
-QDataStream &operator>>(QDataStream &in, EchoMessage &message)
-{
-    in >> message.message_;
-
-    return in;
-}
-
-bool operator==(const EchoMessage &first, const EchoMessage &second)
-{
-    return first.message_ == second.message_;
-}
-
 QDebug operator<<(QDebug debug, const EchoMessage &)
 {
     return debug.nospace() << "EchoMessage()";
diff --git a/src/libs/clangbackendipc/cmbechomessage.h b/src/libs/clangbackendipc/cmbechomessage.h
index 9cf29b4611f..a37f722e5af 100644
--- a/src/libs/clangbackendipc/cmbechomessage.h
+++ b/src/libs/clangbackendipc/cmbechomessage.h
@@ -31,24 +31,43 @@
 
 namespace ClangBackEnd {
 
-class CMBIPC_EXPORT EchoMessage
+class EchoMessage
 {
-    friend CMBIPC_EXPORT QDataStream &operator>>(QDataStream &in, EchoMessage &message);
-    friend CMBIPC_EXPORT bool operator==(const EchoMessage &first, const EchoMessage &second);
 public:
     EchoMessage() = default;
-    explicit EchoMessage(const MessageEnvelop &message);
+    explicit EchoMessage(const MessageEnvelop &message)
+        : message_(message)
+    {
+    }
 
-    const MessageEnvelop &message() const;
+    const MessageEnvelop &message() const
+    {
+        return message_;
+    }
+
+    friend QDataStream &operator<<(QDataStream &out, const EchoMessage &message)
+    {
+        out << message.message();
+
+        return out;
+    }
+
+    friend QDataStream &operator>>(QDataStream &in, EchoMessage &message)
+    {
+        in >> message.message_;
+
+        return in;
+    }
+
+    friend bool operator==(const EchoMessage &first, const EchoMessage &second)
+    {
+        return first.message_ == second.message_;
+    }
 
 private:
     MessageEnvelop message_;
 };
 
-CMBIPC_EXPORT QDataStream &operator<<(QDataStream &out, const EchoMessage &message);
-CMBIPC_EXPORT QDataStream &operator>>(QDataStream &in, EchoMessage &message);
-CMBIPC_EXPORT bool operator==(const EchoMessage &first, const EchoMessage &second);
-
 CMBIPC_EXPORT QDebug operator<<(QDebug debug, const EchoMessage &message);
 void PrintTo(const EchoMessage &message, ::std::ostream* os);