diff --git a/src/entities/eyeDroids/grenadeDroid.h b/src/entities/eyeDroids/grenadeDroid.h
index b83685e..02adbcd 100644
--- a/src/entities/eyeDroids/grenadeDroid.h
+++ b/src/entities/eyeDroids/grenadeDroid.h
@@ -20,7 +20,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../../common.h"
 
-extern Unit *createUnit(void);
 extern void initEyeDroid(Unit *u);
 extern Sprite *getSprite(char *name);
 
diff --git a/src/system/controls.h b/src/system/controls.h
index 75c0187..2ed81bd 100644
--- a/src/system/controls.h
+++ b/src/system/controls.h
@@ -21,4 +21,3 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../common.h"
 
 extern App app;
-extern Game game;
diff --git a/src/world/map.h b/src/world/map.h
index 831b0f7..e86c0ba 100644
--- a/src/world/map.h
+++ b/src/world/map.h
@@ -25,7 +25,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern float limit(float i, float a, float b);
 extern int rrnd(int low, int high);
-extern char *readFile(const char *filename);
 extern char *readCompressedFile(const char *filename);
 extern Atlas *getImageFromAtlas(char *filename);
 extern Texture *getTexture(const char *filename);