diff --git a/include/crap/algorithm.d/mismatchtype.h b/include/crap/algorithm.d/mismatchtype.h
index 2a82b8f..61363df 100644
--- a/include/crap/algorithm.d/mismatchtype.h
+++ b/include/crap/algorithm.d/mismatchtype.h
@@ -312,7 +312,12 @@ template <template <class, class> class Operator, class First1, class ... Rest1>
 
 template <template <class, class> class Operator, class First1, class ... Rest1> template <class Only2>
         inline constexpr typename
+//TODO: Add version check if changed by clang.
+#if defined(__clang__) || (!defined(__clang__) && defined(__GNUC__) && (__GNUC__ < 10))
+	crap :: mismatchType <Operator, First1, Rest1...> :: template with <Only2> :: value_type
+#else
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <Only2> :: value_type
+#endif
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <Only2> :: operator () ()
 	const noexcept
 {
@@ -324,7 +329,11 @@ template <template <class, class> class Operator, class First1, class ... Rest1>
 template <class First2, class ... Rest2>
         inline constexpr
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <First2, Rest2...> :: operator typename
+#if (!defined(__clang__) && defined(__GNUC__) && (__GNUC__ < 10))
+	crap :: mismatchType <Operator, First1, Rest1...> :: template with <First2, Rest2...> :: value_type ()
+#else
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <First2, Rest2...> :: value_type ()
+#endif
 	const noexcept
 {
  return crap :: mismatchType <Operator, First1, Rest1...> :: with <First2, Rest2...> :: value;
@@ -334,7 +343,12 @@ template <class First2, class ... Rest2>
 template <template <class, class> class Operator, class First1, class ... Rest1>
 template <class First2, class ... Rest2>
         inline constexpr typename
+//TODO: Add version check if changed by clang.
+#if defined(__clang__) || (!defined(__clang__) && defined(__GNUC__) && (__GNUC__ < 10))
+	crap :: mismatchType <Operator, First1, Rest1...> :: template with <First2, Rest2...> :: value_type
+#else
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <First2, Rest2...> :: value_type
+#endif
 	crap :: mismatchType <Operator, First1, Rest1...> :: with <First2, Rest2...> :: operator () ()
 	const noexcept
 {