diff --git a/test/testautovariables.cpp b/test/testautovariables.cpp
index 1ba4d423b..f4abf6a1b 100644
--- a/test/testautovariables.cpp
+++ b/test/testautovariables.cpp
@@ -348,8 +348,13 @@ private:
         ASSERT_EQUALS("[test.cpp:3]: (error) Address of local auto-variable assigned to a function parameter.\n", errout.str());
     }
 
-    void testautovar12() { // Ticket #5024 - Crash on invalid input
+    void testautovar12() { // Ticket #5024, #5050 - Crash on invalid input
         check("void f(int* a) { a = }");
+        check("struct custom_type { custom_type(int) {} };\n"
+              "void func(int) {}\n"
+              "int var;\n"
+              "void init() { func(var); }\n"
+              "UNKNOWN_MACRO_EXPANDING_TO_SIGNATURE { custom_type a(var); }");
     }
 
     void testautovar_array1() {