diff --git a/readme.txt b/readme.txt
index e378bd5d22..5f6598b9a2 100644
--- a/readme.txt
+++ b/readme.txt
@@ -680,6 +680,7 @@ http://homer.rice.edu/~sandmann/cwsdpmi/csdpmi5s.zip
 X.X) Credits
 ---- -------
 The OpenTTD team (in alphabetical order):
+  Grzegorz Duczyński (adf88)      - General coding (since 1.7.2)
   Albert Hofkamp (Alberth)        - GUI expert (since 0.7)
   Matthijs Kooijman (blathijs)    - Pathfinder-guru, Debian port (since 0.3)
   Ulf Hermann (fonsinchen)        - Cargo Distribution (since 1.3)
diff --git a/src/misc_gui.cpp b/src/misc_gui.cpp
index 03500c2a26..01e8d2c45d 100644
--- a/src/misc_gui.cpp
+++ b/src/misc_gui.cpp
@@ -397,6 +397,7 @@ static const char * const _credits[] = {
 	"Original graphics by Simon Foster",
 	"",
 	"The OpenTTD team (in alphabetical order):",
+	"  Grzegorz Duczy\xC5\x84ski (adf88) - General coding (since 1.7.2)",
 	"  Albert Hofkamp (Alberth) - GUI expert (since 0.7)",
 	"  Matthijs Kooijman (blathijs) - Pathfinder-guru, Debian port (since 0.3)",
 	"  Ulf Hermann (fonsinchen) - Cargo Distribution (since 1.3)",