diff --git a/Changelog.md b/Changelog.md
index 2472d9467..96f3a1444 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -8,7 +8,8 @@ Compiler Features:
 
 
 Bugfixes:
- * Inline Assembly: Fix internal error when accessing incorrect constant variables.
+ * Inline Assembly: Fix internal error when accessing invalid constant variables.
+ * Reference Resolver: Fix internal error when accessing invalid struct members.
  * Inheritance: Allow public state variables to override functions with dynamic memory types in their return values.
  * JSON AST: Always add pointer suffix for memory reference types.
 
diff --git a/libsolidity/analysis/ReferencesResolver.cpp b/libsolidity/analysis/ReferencesResolver.cpp
index 8ea07f182..94a16d6f1 100644
--- a/libsolidity/analysis/ReferencesResolver.cpp
+++ b/libsolidity/analysis/ReferencesResolver.cpp
@@ -204,7 +204,7 @@ void ReferencesResolver::endVisit(UserDefinedTypeName const& _typeName)
 	else
 	{
 		_typeName.annotation().type = TypeProvider::emptyTuple();
-		typeError(_typeName.location(), "Name has to refer to a struct, enum or contract.");
+		fatalTypeError(_typeName.location(), "Name has to refer to a struct, enum or contract.");
 	}
 }
 
diff --git a/test/libsolidity/syntaxTests/structs/member_type_eq_name.sol b/test/libsolidity/syntaxTests/structs/member_type_eq_name.sol
new file mode 100644
index 000000000..50f0eb365
--- /dev/null
+++ b/test/libsolidity/syntaxTests/structs/member_type_eq_name.sol
@@ -0,0 +1,7 @@
+contract C {
+  struct S {t t;}
+  function f(function(S memory) external) public {}
+}
+// ----
+// TypeError: (25-26): Name has to refer to a struct, enum or contract.
+// TypeError: (53-61): Internal type cannot be used for external function type.
diff --git a/test/libsolidity/syntaxTests/structs/member_type_func.sol b/test/libsolidity/syntaxTests/structs/member_type_func.sol
new file mode 100644
index 000000000..709a40e26
--- /dev/null
+++ b/test/libsolidity/syntaxTests/structs/member_type_func.sol
@@ -0,0 +1,8 @@
+contract C {
+  function f() public {}
+  struct S {f x;}
+  function g(function(S memory) external) public {}
+}
+// ----
+// TypeError: (50-51): Name has to refer to a struct, enum or contract.
+// TypeError: (78-86): Internal type cannot be used for external function type.