diff --git a/sortix/include/sortix/x86/bits.h b/sortix/include/sortix/x86/bits.h
index 57a2144c..b264cdca 100644
--- a/sortix/include/sortix/x86/bits.h
+++ b/sortix/include/sortix/x86/bits.h
@@ -55,8 +55,8 @@ typedef __uint64_t __uintmax_t;
 
 /* Define an integer able to hold the size of the largest continuous memory */
 /* region and define pointer safe integer types. */
-typedef unsigned int __size_t;
-typedef signed long __ssize_t;
+typedef long unsigned int __size_t;
+typedef long signed int __ssize_t;
 typedef signed long __intptr_t;
 typedef unsigned long __uintptr_t;
 typedef signed long __ptrdiff_t;