diff --git a/th04/shared.hpp b/th04/shared.hpp
index 17603ae7..2a8c09c7 100644
--- a/th04/shared.hpp
+++ b/th04/shared.hpp
@@ -24,8 +24,6 @@
 #include "th04/score.h"
 /// ------
 
-#include "th04/main/playfld.hpp"
-
 /// Stages
 /// ------
 extern nearfunc_t_near stage_invalidate;
diff --git a/th05/main/playfld.hpp b/th05/main/playfld.hpp
new file mode 100644
index 00000000..dc5745fc
--- /dev/null
+++ b/th05/main/playfld.hpp
@@ -0,0 +1,11 @@
+#include "th04/main/playfld.hpp"
+
+// These fill the VRAM playfield area around the given [left]_[top]_[w]_[h]
+// coordinates with the current GRCG tile. The GRCG is assumed to be set to
+// TDW mode.
+void pascal near playfield_fillm_32_0_320_192(void);
+void pascal near playfield_fillm_0_0_384_192__2(void);
+void pascal near playfield_fillm_0_205_384_163(void);
+void pascal near playfield_fillm_64_56_256_256(void);
+void pascal near playfield_fillm_0_0_384_192__1(void);
+void pascal near playfield_fillm_0_104_384_192(void);
diff --git a/th05/main013.cpp b/th05/main013.cpp
index 6e0d1ae9..45acc607 100644
--- a/th05/main013.cpp
+++ b/th05/main013.cpp
@@ -17,15 +17,9 @@ extern "C" {
 #include "th04/main/rank.hpp"
 #include "th04/main/item/items.hpp"
 #include "th05/formats/bb.h"
+#include "th05/main/playfld.hpp"
 #include "th05/main/boss/boss.hpp"
 
-void pascal near playfield_fillm_32_0_320_192(void);
-void pascal near playfield_fillm_0_0_384_192__2(void);
-void pascal near playfield_fillm_0_205_384_163(void);
-void pascal near playfield_fillm_64_56_256_256(void);
-void pascal near playfield_fillm_0_0_384_192__1(void);
-void pascal near playfield_fillm_0_104_384_192(void);
-
 #include "th04/main/boss/end.cpp"
 #include "th04/main/boss/reset.cpp"
 #include "th04/formats/bb_stage.c"