diff --git a/utils/GPSsmooth/CMakeLists.txt b/utils/GPSsmooth/CMakeLists.txt
index 2349cc727..a76c9521d 100644
--- a/utils/GPSsmooth/CMakeLists.txt
+++ b/utils/GPSsmooth/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 add_executable(GPSsmooth
-    gps.cxx gps.hxx
+    GPSsmooth.cxx GPSsmooth.hxx
     gps_main.cxx
 )
 
diff --git a/utils/GPSsmooth/gps.cxx b/utils/GPSsmooth/GPSsmooth.cxx
similarity index 99%
rename from utils/GPSsmooth/gps.cxx
rename to utils/GPSsmooth/GPSsmooth.cxx
index 1d6a79c22..c3ddde99e 100644
--- a/utils/GPSsmooth/gps.cxx
+++ b/utils/GPSsmooth/GPSsmooth.cxx
@@ -10,7 +10,7 @@
 #include <simgear/misc/sgstream.hxx>
 #include <simgear/misc/strutils.hxx>
 
-#include "gps.hxx"
+#include "GPSsmooth.hxx"
 
 using std::cout;
 using std::endl;
diff --git a/utils/GPSsmooth/gps.hxx b/utils/GPSsmooth/GPSsmooth.hxx
similarity index 100%
rename from utils/GPSsmooth/gps.hxx
rename to utils/GPSsmooth/GPSsmooth.hxx
diff --git a/utils/GPSsmooth/gps_main.cxx b/utils/GPSsmooth/gps_main.cxx
index 998a23510..2118b9f24 100644
--- a/utils/GPSsmooth/gps_main.cxx
+++ b/utils/GPSsmooth/gps_main.cxx
@@ -20,7 +20,7 @@
 #include <Network/net_ctrls.hxx>
 #include <Network/net_fdm.hxx>
 
-#include "gps.hxx"
+#include "GPSsmooth.hxx"
 
 
 using std::cout;