diff --git a/lib/symboldatabase.cpp b/lib/symboldatabase.cpp
index c8e970a2c..17f6a9ab1 100644
--- a/lib/symboldatabase.cpp
+++ b/lib/symboldatabase.cpp
@@ -324,6 +324,8 @@ SymbolDatabase::SymbolDatabase(const Tokenizer *tokenizer, const Settings *setti
                         // find start of function '{'
                         while (end && end->str() != "{")
                             end = end->next();
+                        if (!end)
+                            continue;
 
                         // save start of function
                         function.start = end;
diff --git a/test/testsymboldatabase.cpp b/test/testsymboldatabase.cpp
index 9a54291d3..31df5a199 100644
--- a/test/testsymboldatabase.cpp
+++ b/test/testsymboldatabase.cpp
@@ -153,6 +153,7 @@ private:
         TEST_CASE(symboldatabase24); // ticket #3508 (constructor, destructor)
         TEST_CASE(symboldatabase25); // ticket #3561 (throw C++)
         TEST_CASE(symboldatabase26); // ticket #3561 (throw C)
+        TEST_CASE(symboldatabase27); // ticket #3543 (segmentation fault)
     }
 
     void test_isVariableDeclarationCanHandleNull() {
@@ -1118,6 +1119,16 @@ private:
         ASSERT(db && db->getVariableListSize() == 2); // index 0 + 1 variable
     }
 
+    // #ticket #3543 (segmentation fault)
+    void symboldatabase27() {
+        check("class C : public B1\n"
+              "{\n"
+              "    B1()\n"
+              "    {} C(int) : B1() class\n"
+              "};\n");
+        ASSERT_EQUALS("", errout.str());
+    }
+
 };
 
 REGISTER_TEST(TestSymbolDatabase)