diff --git a/JsonGenerator/Print.h b/JsonGenerator/Print.h
index 77dd0664..84368c0c 100644
--- a/JsonGenerator/Print.h
+++ b/JsonGenerator/Print.h
@@ -15,15 +15,7 @@ public:
 
     virtual size_t write(uint8_t c) = 0;
 
-    size_t write(const char* s)
-    {
-        size_t n = 0;
-        while (*s)
-        {
-            n += write(*s++);
-        }
-        return n;
-    }
+    size_t write(const char* s);
 };
 
 #else
diff --git a/JsonGeneratorTests/JsonGeneratorTests.vcxproj b/JsonGeneratorTests/JsonGeneratorTests.vcxproj
index 4f7fb9b4..fb4d2a4e 100644
--- a/JsonGeneratorTests/JsonGeneratorTests.vcxproj
+++ b/JsonGeneratorTests/JsonGeneratorTests.vcxproj
@@ -89,6 +89,7 @@
     <ClCompile Include="JsonArrayTests.cpp" />
     <ClCompile Include="JsonHashTableTests.cpp" />
     <ClCompile Include="JsonValueTests.cpp" />
+    <ClCompile Include="Print.cpp" />
     <ClCompile Include="StringBuilderTests.cpp" />
   </ItemGroup>
   <ItemGroup>
diff --git a/JsonGeneratorTests/JsonGeneratorTests.vcxproj.filters b/JsonGeneratorTests/JsonGeneratorTests.vcxproj.filters
index 22f563b7..128d8b3e 100644
--- a/JsonGeneratorTests/JsonGeneratorTests.vcxproj.filters
+++ b/JsonGeneratorTests/JsonGeneratorTests.vcxproj.filters
@@ -33,6 +33,9 @@
     <ClCompile Include="StringBuilderTests.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="Print.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\JsonGenerator\JsonArray.h">
diff --git a/JsonGeneratorTests/Print.cpp b/JsonGeneratorTests/Print.cpp
new file mode 100644
index 00000000..d1d40b60
--- /dev/null
+++ b/JsonGeneratorTests/Print.cpp
@@ -0,0 +1,16 @@
+/*
+ * Arduino JSON library
+ * Benoit Blanchon 2014 - MIT License
+ */
+
+#include "Print.h"
+
+size_t Print::write(const char* s)
+{
+    size_t n = 0;
+    while (*s)
+    {
+        n += write(*s++);
+    }
+    return n;
+}
\ No newline at end of file