diff --git a/owlps-positioning/cfg/owlps-positioning.cfg b/owlps-positioning/cfg/owlps-positioning.conf
similarity index 99%
rename from owlps-positioning/cfg/owlps-positioning.cfg
rename to owlps-positioning/cfg/owlps-positioning.conf
index 21c3a71..f5c98b9 100644
--- a/owlps-positioning/cfg/owlps-positioning.cfg
+++ b/owlps-positioning/cfg/owlps-positioning.conf
@@ -123,3 +123,5 @@ csv-file = /tmp/owlps-positioning.log
 
 #medium = CSV
 csv-file = /tmp/owlps-positioning.out
+
+# vim: syntax=cfg
diff --git a/owlps-positioning/src/userinterface.cc b/owlps-positioning/src/userinterface.cc
index e229189..b38e3bf 100644
--- a/owlps-positioning/src/userinterface.cc
+++ b/owlps-positioning/src/userinterface.cc
@@ -15,7 +15,7 @@ namespace po = boost::program_options ;
 /* *** Default value definitions *** */
 
 #define DEFAULT_CONFIG_FILE_NAME \
-  "/usr/local/etc/owlps/owlps-positioning.cfg"
+  "/usr/local/etc/owlps/owlps-positioning.conf"
 
 #define DEFAULT_TCPEVAAL_HOST "127.0.0.1"
 #define DEFAULT_TCPEVAAL_PORT 4444