diff --git a/vlib/os/os_windows.c.v b/vlib/os/os_windows.c.v
index 3792d5f5b6..60c8fab9ce 100644
--- a/vlib/os/os_windows.c.v
+++ b/vlib/os/os_windows.c.v
@@ -22,7 +22,7 @@ struct Filetime {
 }
 
 // win: WIN32_FIND_DATA
-// https://docs.microsoft.com/en-us/windows/win32/api/minwinbase/ns-minwinbase-_win32_find_dataw
+// https://docs.microsoft.com/en-us/windows/win32/api/minwinbase/ns-minwinbase-win32_find_dataw
 struct Win32finddata {
 mut:
     dw_file_attributes u32
diff --git a/vlib/rand/mt19937/mt19937.v b/vlib/rand/mt19937/mt19937.v
index 2b97154c69..90defcc126 100644
--- a/vlib/rand/mt19937/mt19937.v
+++ b/vlib/rand/mt19937/mt19937.v
@@ -44,8 +44,8 @@ C++ functions for MT19937, with initialization improved 2002/2/10.
 
 
    Any feedback is very welcome.
-   http://www.math.keio.ac.jp/matumoto/emt.html
-   email: matumoto@math.keio.ac.jp
+   http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
+   email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
 */
 const (
 	nn            = 312