diff --git a/RedPandaIDE/mainwindow.cpp b/RedPandaIDE/mainwindow.cpp
index 8c2353be..6efc4738 100644
--- a/RedPandaIDE/mainwindow.cpp
+++ b/RedPandaIDE/mainwindow.cpp
@@ -2560,7 +2560,7 @@ void MainWindow::debug()
             inferior=mProject->options().hostApplication;
             inferiorHasSymbols = false;
         }
-        inferior.replace('\\','/');
+        QDir::fromNativeSeparators(inferior);
         if (!mDebugger->startClient(
                     mProject->options().compilerSet,
                     inferior,
@@ -2657,7 +2657,7 @@ void MainWindow::debug()
                 }
 
                 prepareDebugger();
-                QString newFilePath = debugFile.filePath().replace('\\','/');
+                QString newFilePath =QDir::fromNativeSeparators(debugFile.filePath());
                 if (!mDebugger->startClient(
                             pSettings->compilerSets().defaultIndex(),
                             newFilePath,
diff --git a/RedPandaIDE/parser/parserutils.cpp b/RedPandaIDE/parser/parserutils.cpp
index e76e065d..ce3a3721 100644
--- a/RedPandaIDE/parser/parserutils.cpp
+++ b/RedPandaIDE/parser/parserutils.cpp
@@ -21,6 +21,7 @@
 #include <QFileInfo>
 #include <QDebug>
 #include <QGlobalStatic>
+#include "../systemconsts.h"
 #include "../utils.h"
 
 QStringList CppDirectives;
@@ -506,7 +507,7 @@ bool isSystemHeaderFile(const QString &fileName, const QSet<QString> &includePat
             QDir dir = info.dir();
             QString absPath = dir.absolutePath();
             foreach (const QString& incPath, includePaths) {
-                if (absPath.startsWith(incPath))
+                if (absPath.startsWith(incPath, PATH_SENSITIVITY))
                     return true;
             }
         }