diff --git a/kern/libkern/stdint.h b/kern/libkern/stdint.h
index b7cbc0f..aaced78 100644
--- a/kern/libkern/stdint.h
+++ b/kern/libkern/stdint.h
@@ -6,12 +6,22 @@ typedef unsigned short u16;
 typedef unsigned int   u32;
 typedef unsigned long  u64;
 
+typedef char  i8;
+typedef short i16;
+typedef int   i32;
+typedef long  i64;
+
 typedef unsigned char  uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int   uint32_t;
 typedef unsigned long  uint64_t;
-typedef uint64_t       size_t;
 
+typedef char  int8_t;
+typedef short int16_t;
+typedef int   int32_t;
+typedef long  int64_t;
+
+typedef uint64_t size_t;
 typedef uint64_t uintptr_t;
 
 #define INT8_MIN  (-128)