diff --git a/src/add-ons/accelerants/matrox/Jamfile b/src/add-ons/accelerants/matrox/Jamfile
index 344064545d..d279c1fa4b 100644
--- a/src/add-ons/accelerants/matrox/Jamfile
+++ b/src/add-ons/accelerants/matrox/Jamfile
@@ -7,7 +7,6 @@ UsePrivateHeaders [ FDirName graphics matrox ] ;
 UseHeaders [ FDirName $(SUBDIR) engine ] ;
 
 Addon mga.accelerant : accelerants :
-	Acceleration.c
 	Cursor.c
 	EngineManagment.c
 	GetAccelerantHook.c