diff --git a/plugins/custom-definesandincludes/compilerprovider/gcclikecompiler.cpp b/plugins/custom-definesandincludes/compilerprovider/gcclikecompiler.cpp
--- a/plugins/custom-definesandincludes/compilerprovider/gcclikecompiler.cpp
+++ b/plugins/custom-definesandincludes/compilerprovider/gcclikecompiler.cpp
@@ -24,6 +24,7 @@
 #include "gcclikecompiler.h"

 #include <QFileInfo>
+#include <QDir>
 #include <QProcess>
 #include <QRegularExpression>
 #include <QMap>
@@ -207,7 +208,7 @@
                     mode = Finished;
                 } else {
                     // This is an include path, add it to the list.
-                    auto hostPath = rt->pathInHost(Path(line.trimmed().toString()));
+                    auto hostPath = rt->pathInHost(Path(QDir(line.trimmed().toString()).canonicalPath()));
                     // but skip folders with compiler builtins, we cannot parse these with clang
                     if (!QFile::exists(hostPath.toLocalFile() + QLatin1String("/cpuid.h"))) {
                         data.includePaths << Path(QFileInfo(hostPath.toLocalFile()).canonicalFilePath());