diff --git a/cli/cppcheckexecutor.cpp b/cli/cppcheckexecutor.cpp
index 30c94d3ab..082f77e6f 100644
--- a/cli/cppcheckexecutor.cpp
+++ b/cli/cppcheckexecutor.cpp
@@ -155,10 +155,10 @@ int CppCheckExecutor::check(int argc, const char* const argv[])
         return EXIT_FAILURE;
     }
 
-    bool std = settings.library.load(argv[0], "std");
+    bool std = settings.library.load(argv[0], "std.cfg");
     bool posix = true;
     if (settings.standards.posix)
-        posix = settings.library.load(argv[0], "posix");
+        posix = settings.library.load(argv[0], "posix.cfg");
 
     if (!std || !posix) {
         const std::list<ErrorLogger::ErrorMessage::FileLocation> callstack;
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index 9c56a18ee..4cc329d6a 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -565,10 +565,10 @@ Settings MainWindow::GetCppcheckSettings()
     result.standards.posix = mSettings->value(SETTINGS_STD_POSIX, false).toBool();
 
     const QString applicationFilePath = QCoreApplication::applicationFilePath();
-    bool std = result.library.load(applicationFilePath.toLatin1(), "std");
+    bool std = result.library.load(applicationFilePath.toLatin1(), "std.cfg");
     bool posix = true;
     if (result.standards.posix)
-        posix = result.library.load(applicationFilePath.toLatin1(), "posix");
+        posix = result.library.load(applicationFilePath.toLatin1(), "posix.cfg");
 
     if (!std || !posix)
         QMessageBox::warning(this, tr("Error"), tr("Failed to load %1. Your Cppcheck installation is broken.").arg(!std ? "std.cfg" : "posix.cfg"));