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
@@ -179,7 +179,11 @@
         return m_defaultProvider;
 
     auto rt = ICore::self()->runtimeController()->currentRuntime();
-    const auto path = QFile::decodeName(rt->getenv("PATH")).split(':');
+    QChar delim = QChar(':');
+#ifdef Q_OS_WIN
+    delim = QChar(';');
+#endif
+    const auto path = QFile::decodeName(rt->getenv("PATH")).split(delim);
 
     for ( const CompilerPointer& compiler : m_compilers ) {
         const bool absolutePath = QDir::isAbsolutePath(compiler->path());