diff --git a/kernel/include/limits.h b/kernel/include/limits.h
index 9156e0e..acd3eea 100644
--- a/kernel/include/limits.h
+++ b/kernel/include/limits.h
@@ -1,5 +1,6 @@
 #ifndef _LIMIT_H
 #define _LIMIT_H
+
 #define CHAR_BIT 8
 
 #define INT8_WIDTH 8
@@ -12,19 +13,19 @@
 #define UINT32_WIDTH 32
 #define UINT64_WIDTH 64
 
-#define INT8_MAX 2 * *(INT8_WIDTH - 1) - 1
-#define INT16_MAX 2 * *(INT16_WIDTH - 1) - 1
-#define INT32_MAX 2 * *(INT32_WIDTH - 1) - 1
-#define INT64_MAX 2 * *(INT64_WIDTH - 1) - 1
+#define INT8_MAX 127
+#define INT16_MAX 32767
+#define INT32_MAX 2147483647
+#define INT64_MAX 9223372036854775807LL
 
-#define INT8_MIN -2 * *(INT8_WIDTH - 1)
-#define INT16_MIN -2 * *(INT16_WIDTH - 1)
-#define INT32_MIN -2 * *(INT32_WIDTH - 1)
-#define INT64_MIN -2 * *(INT64_WIDTH - 1)
+#define INT8_MIN (-128)
+#define INT16_MIN (-32768)
+#define INT32_MIN (-2147483647 - 1)
+#define INT64_MIN (-9223372036854775807LL - 1LL)
 
-#define UINT8_MAX 2 * *INT8_WIDTH - 1
-#define UINT16_MAX 2 * *INT16_WIDTH - 1
-#define UINT32_MAX 2 * *INT32_WIDTH - 1
-#define UINT64_MAX 2 * *INT64_WIDTH - 1
+#define UINT8_MAX 255U
+#define UINT16_MAX 65535U
+#define UINT32_MAX 4294967295U
+#define UINT64_MAX 18446744073709551615ULL
 
-#endif
+#endif
\ No newline at end of file