diff --git a/src/cppcheck.cpp b/src/cppcheck.cpp
index 073f9cad9..0e168e29f 100644
--- a/src/cppcheck.cpp
+++ b/src/cppcheck.cpp
@@ -66,6 +66,12 @@ void CppCheck::addFile(const std::string &path, const std::string &content)
     _fileContents[ path ] = content;
 }
 
+void CppCheck::clearFiles()
+{
+    _filenames.clear();
+    _fileContents.clear();
+}
+
 std::string CppCheck::parseFromArgs(int argc, const char* const argv[])
 {
     std::vector<std::string> pathnames;
diff --git a/src/cppcheck.h b/src/cppcheck.h
index 1c5cae372..53d6a1ede 100644
--- a/src/cppcheck.h
+++ b/src/cppcheck.h
@@ -89,6 +89,11 @@ public:
      */
     void addFile(const std::string &path, const std::string &content);
 
+    /**
+     * Remove all files added with addFile() and parseFromArgs().
+     */
+    void clearFiles();
+
     /**
      * Parse command line args and get settings and file lists
      * from there.