diff --git a/plugins/custom-definesandincludes/compilerprovider/compilerprovider.cpp b/plugins/custom-definesandincludes/compilerprovider/compilerprovider.cpp
--- a/plugins/custom-definesandincludes/compilerprovider/compilerprovider.cpp
+++ b/plugins/custom-definesandincludes/compilerprovider/compilerprovider.cpp
@@ -177,7 +177,7 @@
         return m_defaultProvider;
 
     auto rt = ICore::self()->runtimeController()->currentRuntime();
-    const auto path = QFile::decodeName(rt->getenv("PATH")).split(':');
+    const auto path = QFile::decodeName(rt->getenv("PATH")).split(QDir::listSeparator());
 
     for ( const CompilerPointer& compiler : m_compilers ) {
         const bool absolutePath = QDir::isAbsolutePath(compiler->path());