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-rw-r--r--gps/fake.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gps/fake.py b/gps/fake.py
index f2fce76c..9d850518 100644
--- a/gps/fake.py
+++ b/gps/fake.py
@@ -549,7 +549,7 @@ class DaemonInstance(SubprogramInstance):
% (port, self.control_socket, options))
# Derive a unique SHM key from the port # to avoid collisions.
# Use 'Gp' as the prefix to avoid colliding with 'GPSD'.
- shmkey = '0x4770%.04X' % port
+ shmkey = '0x4770%.04X' % int(port)
env = {'GPSD_SHM_KEY': shmkey}
super(DaemonInstance, self).spawn('gpsd', opts, background, prefix,
env)