1 files changed, 3 insertions, 2 deletions

diff --git a/nt/addpm.c b/nt/addpm.c
index f71ce5f2385..a8bcd4a5c73 100644
--- a/nt/addpm.c
+++ b/nt/addpm.c
@@ -219,8 +219,9 @@ main (int argc, char *argv[])
         {
           int result;
 
-          char msg[ MAX_PATH ];
-          sprintf (msg, "Install Emacs at %s?\n", emacs_path);
+          const char install_msg[] = "Install Emacs at %s?\n";
+          char msg[ MAX_PATH + sizeof (install_msg) ];
+          sprintf (msg, install_msg, emacs_path);
           result = MessageBox (NULL, msg, "Install Emacs",
                                MB_OKCANCEL | MB_ICONQUESTION);
           if (result != IDOK)