diff --git a/src/blackmisc/directoryutils.cpp b/src/blackmisc/directoryutils.cpp
index fd33b8110..5714e7a2e 100644
--- a/src/blackmisc/directoryutils.cpp
+++ b/src/blackmisc/directoryutils.cpp
@@ -219,6 +219,12 @@ namespace BlackMisc
         return test;
     }
 
+    const QString &CDirectoryUtils::shareTerrainProbeDirectory()
+    {
+        static const QString tpd(CFileUtils::appendFilePaths(CDirectoryUtils::shareDirectory(), "simulator/swiftTerrainProbe"));
+        return tpd;
+    }
+
     const QString &CDirectoryUtils::bootstrapFileName()
     {
         static const QString n("bootstrap.json");
diff --git a/src/blackmisc/directoryutils.h b/src/blackmisc/directoryutils.h
index 32222b43a..6201fc174 100644
--- a/src/blackmisc/directoryutils.h
+++ b/src/blackmisc/directoryutils.h
@@ -82,6 +82,9 @@ namespace BlackMisc
         //! The test data directory
         static const QString &shareTestDirectory();
 
+        //! FSX/P3D terrain probe
+        static const QString &shareTerrainProbeDirectory();
+
         //! Bootstrap file name
         static const QString &bootstrapFileName();