diff --git a/ebml/EbmlBinary.h b/ebml/EbmlBinary.h
index 7d54fbff..9cc380f5 100644
--- a/ebml/EbmlBinary.h
+++ b/ebml/EbmlBinary.h
@@ -80,6 +80,7 @@ class EBML_DLL_API EbmlBinary : public EbmlElement {
       SetValueIsSet();
     }
 
+    using EbmlElement::operator const EbmlId &;
     operator const binary &() const;
 
     bool IsDefaultValue() const override {
diff --git a/ebml/EbmlFloat.h b/ebml/EbmlFloat.h
index 3c545584..26ac5f4b 100644
--- a/ebml/EbmlFloat.h
+++ b/ebml/EbmlFloat.h
@@ -78,6 +78,7 @@ class EBML_DLL_API EbmlFloat : public EbmlElement {
 
     bool IsSmallerThan(const EbmlElement *Cmp) const override;
 
+    using EbmlElement::operator const EbmlId &;
     operator float() const;
     operator double() const;
 
diff --git a/ebml/EbmlSInteger.h b/ebml/EbmlSInteger.h
index caa4361c..df2d1b00 100644
--- a/ebml/EbmlSInteger.h
+++ b/ebml/EbmlSInteger.h
@@ -70,6 +70,7 @@ class EBML_DLL_API EbmlSInteger : public EbmlElement {
 
     bool IsSmallerThan(const EbmlElement *Cmp) const override;
 
+    using EbmlElement::operator const EbmlId &;
     explicit operator std::int8_t() const;
     explicit operator std::int16_t() const;
     explicit operator std::int32_t() const;
diff --git a/ebml/EbmlString.h b/ebml/EbmlString.h
index 514c70ff..831e9fcd 100644
--- a/ebml/EbmlString.h
+++ b/ebml/EbmlString.h
@@ -58,6 +58,7 @@ class EBML_DLL_API EbmlString : public EbmlElement {
     filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false) override;
 
     EbmlString & operator=(const std::string &);
+    using EbmlElement::operator const EbmlId &;
     explicit operator const std::string &() const;
 
     EbmlString &SetValue(std::string const &NewValue);
diff --git a/ebml/EbmlUInteger.h b/ebml/EbmlUInteger.h
index 89ca8e5f..cd01d571 100644
--- a/ebml/EbmlUInteger.h
+++ b/ebml/EbmlUInteger.h
@@ -68,6 +68,7 @@ class EBML_DLL_API EbmlUInteger : public EbmlElement {
 
     bool IsSmallerThan(const EbmlElement *Cmp) const override;
 
+    using EbmlElement::operator const EbmlId &;
     explicit operator std::uint8_t()  const;
     explicit operator std::uint16_t() const;
     explicit operator std::uint32_t() const;
diff --git a/ebml/EbmlUnicodeString.h b/ebml/EbmlUnicodeString.h
index afc91c9a..96a9c4e3 100644
--- a/ebml/EbmlUnicodeString.h
+++ b/ebml/EbmlUnicodeString.h
@@ -108,6 +108,7 @@ class EBML_DLL_API EbmlUnicodeString : public EbmlElement {
     filepos_t UpdateSize(bool bWithDefault = false, bool bForceRender = false) override;
 
     EbmlUnicodeString & operator=(const UTFstring &); ///< platform dependant code
+    using EbmlElement::operator const EbmlId &;
     explicit operator const UTFstring &() const;
 
     EbmlUnicodeString &SetValue(UTFstring const &NewValue);
diff --git a/src/EbmlElement.cpp b/src/EbmlElement.cpp
index 362eb4c7..446d6ad8 100644
--- a/src/EbmlElement.cpp
+++ b/src/EbmlElement.cpp
@@ -92,7 +92,7 @@ int CodedSizeLength(std::uint64_t Length, unsigned int SizeLength, bool bSizeIsF
 */
 int CodedSizeLengthSigned(std::int64_t Length, unsigned int SizeLength)
 {
-  int CodedSize;
+  unsigned int CodedSize;
   // prepare the head of the size (000...01xxxxxx)
   // optimal size
   if (Length > -64 && Length < 64) // 2^6