diff --git a/include/common.h b/include/common.h
index 3729870..96e3514 100644
--- a/include/common.h
+++ b/include/common.h
@@ -537,10 +537,10 @@ extern s8 D_800A8211;
 extern s8 D_800A8212;
 extern u8 D_800A8213;
 
-extern u8 __get_compared_osTvType();
-extern u8 __reset_compared_osTvType();
-extern void func_8016CD50(u8 arg0);
-extern void __inc_compared_osTvType(u8 arg0);
+u8 __get_compared_osTvType();
+u8 __reset_compared_osTvType();
+void func_8016CD50(u8 arg0);
+void __inc_compared_osTvType(u8 arg0);
 
 extern s32 func_80173B60(s32);
 extern s32 D_800AF0B0;