diff --git a/src/script/script.cpp b/src/script/script.cpp
index a5126e7cc..1ce8ddb6d 100644
--- a/src/script/script.cpp
+++ b/src/script/script.cpp
@@ -7,6 +7,16 @@
 
 #include <boost/foreach.hpp>
 
+namespace {
+inline std::string ValueString(const std::vector<unsigned char>& vch)
+{
+    if (vch.size() <= 4)
+        return strprintf("%d", CScriptNum(vch).getint());
+    else
+        return HexStr(vch);
+}
+} // anon namespace
+
 using namespace std;
 
 const char* GetOpName(opcodetype opcode)
@@ -253,3 +263,26 @@ bool CScript::HasCanonicalPushes() const
     }
     return true;
 }
+
+std::string CScript::ToString() const
+{
+    std::string str;
+    opcodetype opcode;
+    std::vector<unsigned char> vch;
+    const_iterator pc = begin();
+    while (pc < end())
+    {
+        if (!str.empty())
+            str += " ";
+        if (!GetOp(pc, opcode, vch))
+        {
+            str += "[error]";
+            return str;
+        }
+        if (0 <= opcode && opcode <= OP_PUSHDATA4)
+            str += ValueString(vch);
+        else
+            str += GetOpName(opcode);
+    }
+    return str;
+}
diff --git a/src/script/script.h b/src/script/script.h
index 6676e852a..4f6ee0c52 100644
--- a/src/script/script.h
+++ b/src/script/script.h
@@ -318,13 +318,6 @@ private:
     int64_t m_value;
 };
 
-inline std::string ValueString(const std::vector<unsigned char>& vch)
-{
-    if (vch.size() <= 4)
-        return strprintf("%d", CScriptNum(vch).getint());
-    else
-        return HexStr(vch);
-}
 
 /** Serialized script, used inside transaction inputs and outputs */
 class CScript : public std::vector<unsigned char>
@@ -571,28 +564,7 @@ public:
         return (size() > 0 && *begin() == OP_RETURN);
     }
 
-    std::string ToString() const
-    {
-        std::string str;
-        opcodetype opcode;
-        std::vector<unsigned char> vch;
-        const_iterator pc = begin();
-        while (pc < end())
-        {
-            if (!str.empty())
-                str += " ";
-            if (!GetOp(pc, opcode, vch))
-            {
-                str += "[error]";
-                return str;
-            }
-            if (0 <= opcode && opcode <= OP_PUSHDATA4)
-                str += ValueString(vch);
-            else
-                str += GetOpName(opcode);
-        }
-        return str;
-    }
+    std::string ToString() const;
     void clear()
     {
         // The default std::vector::clear() does not release memory.