diff --git a/test/testclass.cpp b/test/testclass.cpp
index e4944addc..86822b058 100644
--- a/test/testclass.cpp
+++ b/test/testclass.cpp
@@ -2933,6 +2933,28 @@ private:
                       "}\n");
         ASSERT_EQUALS("", errout.str());
 
+        checkNoMemset("class Fred\n"
+                      "{\n"
+                      "    static std::string b;\n"
+                      "};\n"
+                      "void f()\n"
+                      "{\n"
+                      "    Fred fred;\n"
+                      "    memset(&fred, 0, sizeof(Fred));\n"
+                      "}\n");
+        ASSERT_EQUALS("", errout.str());
+
+        checkNoMemset("class Fred\n"
+                      "{\n"
+                      "    std::string * b; \n"
+                      "};\n"
+                      "void f()\n"
+                      "{\n"
+                      "    Fred fred;\n"
+                      "    memset(&fred, 0, sizeof(Fred));\n"
+                      "}\n");
+        ASSERT_EQUALS("", errout.str());
+
         checkNoMemset("class Fred\n"
                       "{\n"
                       "    std::string b; \n"
@@ -2944,6 +2966,17 @@ private:
                       "}\n");
         ASSERT_EQUALS("[test.cpp:8]: (error) Using 'memset' on class that contains a 'std::string'\n", errout.str());
 
+        checkNoMemset("class Fred\n"
+                      "{\n"
+                      "    mutable std::string b; \n"
+                      "};\n"
+                      "void f()\n"
+                      "{\n"
+                      "    Fred fred;\n"
+                      "    memset(&fred, 0, sizeof(Fred));\n"
+                      "}\n");
+        ASSERT_EQUALS("[test.cpp:8]: (error) Using 'memset' on class that contains a 'std::string'\n", errout.str());
+
         checkNoMemset("class Fred\n"
                       "{\n"
                       "};\n"