diff --git a/src/about.c b/src/about.c
index d9edf54..47a0128 100644
--- a/src/about.c
+++ b/src/about.c
@@ -39,13 +39,14 @@ const gchar *authors[] = {
     "Alexandru Csete, OZ9AEC (design and development)",
     "",
     "Contributors:",
+    "David VK5DG (Transponder data files)",
     "Bruce Cowan (Gio port of TLE updater)",
     "Damon Chaplin (GooCanvas)",
     "Dr. T.S. Kelso (SGP4/SDP4 algorithms)",
     "John A. Magliacane, KD2BD (prediction code)",
     "Neoklis Kyriazis, 5B4AZ (SGP4/SDP4 in C)",
     "William J Beksi, KC2EXL (GtkSatMap)",
-    "Stephane Fillod (locator.c)",
+    "Stephane Fillod (Rig controller and locator.c)",
     "Nate Bargmann (locator.c)",
     "Dave Hines (locator.c)",
     "Mirko Caserta (locator.c)",