diff --git a/SConstruct b/SConstruct
index 235b4f949..f3ded9928 100644
--- a/SConstruct
+++ b/SConstruct
@@ -937,7 +937,7 @@ class DXXProgram(DXXCommon):
 'main/game.cpp',
 'main/gamecntl.cpp',
 'main/gamefont.cpp',
-'main/gamemine.c',
+'main/gamemine.cpp',
 'main/gamerend.cpp',
 'main/gamesave.cpp',
 'main/gameseg.cpp',
diff --git a/similar/main/gamemine.c b/similar/main/gamemine.cpp
similarity index 100%
rename from similar/main/gamemine.c
rename to similar/main/gamemine.cpp