diff --git a/CHANGELOG.md b/CHANGELOG.md
index 088e7f6d..70a6e35c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 ArduinoJson: change log
 =======================
 
+HEAD
+----
+
+* Fixed error "attributes are not allowed on a function-definition"
+
 v6.10.0 (2019-03-22)
 -------
 
diff --git a/src/ArduinoJson/MsgPack/MsgPackSerializer.hpp b/src/ArduinoJson/MsgPack/MsgPackSerializer.hpp
index 10edb107..e3ba6439 100644
--- a/src/ArduinoJson/MsgPack/MsgPackSerializer.hpp
+++ b/src/ArduinoJson/MsgPack/MsgPackSerializer.hpp
@@ -24,8 +24,8 @@ class MsgPackSerializer {
   }
 
   template <typename T>
-  typename enable_if<sizeof(T) == 8>::type visitFloat(T value64)
-      ARDUINOJSON_NO_SANITIZE("float-cast-overflow") {
+  ARDUINOJSON_NO_SANITIZE("float-cast-overflow")
+  typename enable_if<sizeof(T) == 8>::type visitFloat(T value64) {
     float value32 = float(value64);
     if (value32 == value64) {
       writeByte(0xCA);