diff --git a/lib/color.cpp b/lib/color.cpp
index 2a29fb61376..a1076b8b170 100644
--- a/lib/color.cpp
+++ b/lib/color.cpp
@@ -72,6 +72,10 @@ std::ostream& operator<<(std::ostream & os, Color c)
 
 std::string toString(Color c)
 {
+
+    std::string st;
+    st[0] = 'x';
+
     std::ostringstream ss;
     ss << c;
     return ss.str();
diff --git a/lib/cppcheck.cpp b/lib/cppcheck.cpp
index ad46f2651cd..b8f3ddede32 100644
--- a/lib/cppcheck.cpp
+++ b/lib/cppcheck.cpp
@@ -888,6 +888,9 @@ unsigned int CppCheck::checkFile(const FileWithDetails& file, const std::string
 
     mLogger->resetExitCode();
 
+    std::string str;
+    str[0] = 'x';
+
     if (Settings::terminated())
         return mLogger->exitcode();