diff --git a/examples/3D_CubedTileDemo/source/main.c b/examples/3D_CubedTileDemo/source/main.c
index 493e38b..5582704 100644
--- a/examples/3D_CubedTileDemo/source/main.c
+++ b/examples/3D_CubedTileDemo/source/main.c
@@ -6,6 +6,7 @@
 #include <grrlib.h>
 
 #include <stdlib.h>
+#include <math.h>
 #include <wiiuse/wpad.h>
 
 #include "gfx/tile1.h"
diff --git a/examples/TileDemo/source/main.c b/examples/TileDemo/source/main.c
index cc44709..4bc3b09 100644
--- a/examples/TileDemo/source/main.c
+++ b/examples/TileDemo/source/main.c
@@ -8,6 +8,7 @@
 #include <grrlib.h>
 
 #include <stdlib.h>
+#include <math.h>
 #include <wiiuse/wpad.h>
 
 #include "gfx/tile1.h"
diff --git a/examples/funsin/source/main.c b/examples/funsin/source/main.c
index 1d09725..c3c1c45 100644
--- a/examples/funsin/source/main.c
+++ b/examples/funsin/source/main.c
@@ -5,6 +5,7 @@
 #include <grrlib.h>
 
 #include <stdlib.h>
+#include <math.h>
 #include <wiiuse/wpad.h>