diff --git a/configuration.nix b/configuration.nix
index 4ebe854..8210227 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -136,9 +136,8 @@ in {
       nmea-share = {
         wantedBy = [ "multi-user.target" ];
         serviceConfig = {
-          # https://github.com/andersson/rmtfs/blob/7a5ae7e0a57be3e09e0256b51b9075ee6b860322/rmtfs.c#L507-L541
           ExecStart = ''
-            ${pkgs.socat}/bin/socat   exec:"${pkgs.qmi-nmea}/bin/qmi-nmea /dev/wwan0qmi0",pty   unix-listen:/var/run/gnss-share.sock,fork,umask=0000,mode=0766
+            ${pkgs.socat}/bin/socat   exec:"${pkgs.qmi-nmea}/bin/qmi-nmea /dev/wwan0qmi0",pty   unix-listen:/var/run/gnss-share.sock,fork,umask=0000,mode=0755
           '';
           Restart = "always";
           RestartSec = "2";