diff --git a/sys/include/ape/stdint.h b/sys/include/ape/stdint.h
index 4aa5381ae..3bc0fd3f5 100644
--- a/sys/include/ape/stdint.h
+++ b/sys/include/ape/stdint.h
@@ -14,10 +14,12 @@ typedef char int8_t;
 typedef short int16_t;
 typedef int int32_t;
 typedef long long int64_t;
+typedef long long intmax_t;
 typedef unsigned char uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int uint32_t;
 typedef unsigned long long uint64_t;
+typedef unsigned long long uintmax_t;
 
 typedef _intptr_t intptr_t;
 typedef _uintptr_t uintptr_t;
@@ -36,11 +38,13 @@ typedef _uintptr_t uintptr_t;
 #define INT16_MAX	0x7fff
 #define INT32_MAX	0x7fffffff
 #define INT64_MAX	0x7fffffffffffffffULL
+#define INTMAX_MAX	INT64_MAX
 
 #define UINT8_MAX	0xff
 #define UINT16_MAX	0xffff
 #define UINT32_MAX	0xffffffffL
 #define UINT64_MAX	0xffffffffffffffffULL
+#define UINTMAX_MAX	UINT64_MAX
 
 /* 
  * Right now, all of our size_t types are 32 bit, even on