diff --git a/Userland/Libraries/LibC/limits.h b/Userland/Libraries/LibC/limits.h
index 24280767d0..99177c3a5b 100644
--- a/Userland/Libraries/LibC/limits.h
+++ b/Userland/Libraries/LibC/limits.h
@@ -44,18 +44,10 @@
 
 #define USHRT_MAX 65535
 
-#ifdef __x86_64__
-#    define LONG_MAX 9223372036854775807L
-#else
-#    define LONG_MAX 2147483647L
-#endif
+#define LONG_MAX 9223372036854775807L
 #define LONG_MIN (-LONG_MAX - 1L)
 
-#ifdef __x86_64__
-#    define ULONG_MAX 18446744073709551615UL
-#else
-#    define ULONG_MAX 4294967295UL
-#endif
+#define ULONG_MAX 18446744073709551615UL
 
 #define LONG_LONG_MAX 9223372036854775807LL
 #define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
@@ -87,7 +79,7 @@
 
 #define ARG_MAX 65536
 
-#define SSIZE_MAX 2147483647
+#define SSIZE_MAX LONG_MAX
 
 #define LINK_MAX 4096