diff --git a/include/internal/catch_assertionresult.h b/include/internal/catch_assertionresult.h
index e2b979f8..a193c556 100644
--- a/include/internal/catch_assertionresult.h
+++ b/include/internal/catch_assertionresult.h
@@ -32,6 +32,9 @@ namespace Catch {
         template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator % ( T const& );
         template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator && ( T const& );
         template<typename T> STATIC_ASSERT_Expression_Too_Complex_Please_Rewrite_As_Binary_Comparison& operator || ( T const& );
+
+	private:
+		DecomposedExpression& operator = (DecomposedExpression const&);
     };
 
     struct AssertionInfo
diff --git a/include/internal/catch_matchers.hpp b/include/internal/catch_matchers.hpp
index 0dae615f..897bb3b1 100644
--- a/include/internal/catch_matchers.hpp
+++ b/include/internal/catch_matchers.hpp
@@ -29,6 +29,8 @@ namespace Matchers {
         protected:
             virtual std::string describe() const = 0;
             mutable std::string m_cachedToString;
+		private:
+			MatcherUntypedBase& operator = (MatcherUntypedBase const&);
         };
 
         template<typename ArgT>