diff --git a/src/mat73.c b/src/mat73.c
index bf43551f..7e8b7837 100644
--- a/src/mat73.c
+++ b/src/mat73.c
@@ -2548,7 +2548,7 @@ Mat_Create73(const char *matname, const char *hdr_str)
     H5Fclose(fid);
     H5Pclose(plist_id);
 
-#if defined(_WIN32) && H5_VERSION_GE(1, 11, 6)
+#if defined(_WIN32) && H5_VERSION_GE(1, 10, 6)
     {
         wchar_t *wname = utf82u(matname);
         if ( NULL != wname ) {