diff --git a/core/hash.c b/core/hash.c
index a77c107..68737b9 100644
--- a/core/hash.c
+++ b/core/hash.c
@@ -1,4 +1,6 @@
 #include <blue/core/hash.h>
+#include <stddef.h>
+#include <stdint.h>
 
 #define FNV1_OFFSET_BASIS 0xcbf29ce484222325
 #define FNV1_PRIME        0x100000001b3