diff --git a/simgear/scene/tsync/terrasync.cxx b/simgear/scene/tsync/terrasync.cxx
index 0c28a46c..357390cc 100644
--- a/simgear/scene/tsync/terrasync.cxx
+++ b/simgear/scene/tsync/terrasync.cxx
@@ -563,18 +563,21 @@ int SGTerraSync::SvnThread::svnClientSetup(void)
     if (_svn_pool) return EXIT_SUCCESS;
     // No, so initialize svn internals generally
 
-    /* svn_cmdline_init configures the locale. Setup environment to ensure the
-     * default "C" locale remains active, since fgfs isn't locale aware - especially
-     * requires "." as decimal point in strings containing floating point varibales. */
-    setenv("LC_ALL", "C", 1);
-
 #ifdef _MSC_VER
     // there is a segfault when providing an error stream.
     //  Apparently, calling setvbuf with a nul buffer is
     //  not supported under msvc 7.1 ( code inside svn_cmdline_init )
     if (svn_cmdline_init("terrasync", 0) != EXIT_SUCCESS)
         return EXIT_FAILURE;
+
+    // revert locale setting
+    setlocale(LC_ALL,"C");
 #else
+    /* svn_cmdline_init configures the locale. Setup environment to ensure the
+     * default "C" locale remains active, since fgfs isn't locale aware - especially
+     * requires "." as decimal point in strings containing floating point varibales. */
+    setenv("LC_ALL", "C", 1);
+
     if (svn_cmdline_init("terrasync", stderr) != EXIT_SUCCESS)
         return EXIT_FAILURE;
 #endif