diff --git a/tools/pokemon_animation_graphics.c b/tools/pokemon_animation_graphics.c
index 3fb065e4b..3d79960e4 100644
--- a/tools/pokemon_animation_graphics.c
+++ b/tools/pokemon_animation_graphics.c
@@ -4,6 +4,7 @@
 #include <string.h>
 #include <stdbool.h>
 #include <getopt.h>
+#include <stdint.h>
 
 static void usage(void) {
 	printf("Usage: pokemon_animation_graphics [-o outfile] [-t mapfile] 2bpp_file dimensions_file\n");