diff --git a/fileio.c b/fileio.c
index 912e72be6f..b0206820ce 100644
--- a/fileio.c
+++ b/fileio.c
@@ -68,7 +68,6 @@ void FioSkipBytes(int n)
 	}
 }
 
-
 uint16 FioReadWord(void)
 {
 	byte b = FioReadByte();
diff --git a/hal.h b/hal.h
index f92f5c974e..87ec8d7a8c 100644
--- a/hal.h
+++ b/hal.h
@@ -42,7 +42,7 @@ enum DriverType {
 	MUSIC_DRIVER = 2,
 };
 
-extern void GameLoop(void);
+void GameLoop(void);
 
 
 // Deals with finding savegames
diff --git a/misc_gui.c b/misc_gui.c
index de3b048a89..8e44261fbe 100644
--- a/misc_gui.c
+++ b/misc_gui.c
@@ -31,7 +31,6 @@
 static bool _fios_path_changed;
 static bool _savegame_sort_dirty;
 
-
 typedef struct LandInfoData {
 	Town *town;
 	int32 costclear;
diff --git a/os2.c b/os2.c
index 03205b53dc..ffb034d1ff 100644
--- a/os2.c
+++ b/os2.c
@@ -22,7 +22,6 @@
 #define INCL_WINCLIPBOARD
 
 #include <os2.h>
-
 #include <i86.h>
 
 static char *_fios_path;