diff --git a/vlib/v/ast/ast.v b/vlib/v/ast/ast.v
index 25844c74b5..2b64e4cb41 100644
--- a/vlib/v/ast/ast.v
+++ b/vlib/v/ast/ast.v
@@ -2179,7 +2179,7 @@ pub fn (expr Expr) is_literal() bool {
 		CastExpr {
 			return !expr.has_arg && expr.expr.is_literal()
 				&& (expr.typ.is_ptr() || expr.typ.is_pointer()
-				|| expr.typ in [i8_type, i16_type, int_type, i64_type, byte_type, u8_type, u16_type, u32_type, u64_type, f32_type, f64_type, char_type, bool_type, rune_type])
+				|| expr.typ in [i8_type, i16_type, int_type, i64_type, byte_type, u16_type, u32_type, u64_type, f32_type, f64_type, char_type, bool_type, rune_type])
 		}
 		SizeOf, IsRefType {
 			return expr.is_type || expr.expr.is_literal()
diff --git a/vlib/v/ast/types.v b/vlib/v/ast/types.v
index 4b032c3c38..3e39826fa8 100644
--- a/vlib/v/ast/types.v
+++ b/vlib/v/ast/types.v
@@ -441,7 +441,7 @@ pub const (
 	int_literal_type_idx   = 27
 	thread_type_idx        = 28
 	error_type_idx         = 29
-	u8_type_idx            = 30
+		// u8_type_idx            = 30
 )
 
 // Note: builtin_type_names must be in the same order as the idx consts above
@@ -453,15 +453,15 @@ pub const builtin_type_names_matcher = build_builtin_type_names_matcher()
 
 pub const (
 	integer_type_idxs          = [i8_type_idx, i16_type_idx, int_type_idx, i64_type_idx,
-		byte_type_idx, u8_type_idx, u16_type_idx, u32_type_idx, u64_type_idx, isize_type_idx,
-		usize_type_idx, int_literal_type_idx, rune_type_idx]
+		byte_type_idx, u16_type_idx, u32_type_idx, u64_type_idx, isize_type_idx, usize_type_idx,
+		int_literal_type_idx, rune_type_idx]
 	signed_integer_type_idxs   = [char_type_idx, i8_type_idx, i16_type_idx, int_type_idx,
 		i64_type_idx, isize_type_idx]
-	unsigned_integer_type_idxs = [byte_type_idx, u8_type_idx, u16_type_idx, u32_type_idx,
-		u64_type_idx, usize_type_idx]
+	unsigned_integer_type_idxs = [byte_type_idx, u16_type_idx, u32_type_idx, u64_type_idx,
+		usize_type_idx]
 	// C will promote any type smaller than int to int in an expression
 	int_promoted_type_idxs     = [char_type_idx, i8_type_idx, i16_type_idx, byte_type_idx,
-		u8_type_idx, u16_type_idx]
+		u16_type_idx]
 	float_type_idxs            = [f32_type_idx, f64_type_idx, float_literal_type_idx]
 	number_type_idxs           = [i8_type_idx, i16_type_idx, int_type_idx, i64_type_idx,
 		byte_type_idx, char_type_idx, u16_type_idx, u32_type_idx, u64_type_idx, isize_type_idx,
@@ -483,7 +483,7 @@ pub const (
 	i64_type           = new_type(i64_type_idx)
 	isize_type         = new_type(isize_type_idx)
 	byte_type          = new_type(byte_type_idx)
-	u8_type            = new_type(u8_type_idx)
+	// u8_type            = new_type(u8_type_idx)
 	u16_type           = new_type(u16_type_idx)
 	u32_type           = new_type(u32_type_idx)
 	u64_type           = new_type(u64_type_idx)
diff --git a/vlib/v/checker/check_types.v b/vlib/v/checker/check_types.v
index 0ee6d63656..3af359ab29 100644
--- a/vlib/v/checker/check_types.v
+++ b/vlib/v/checker/check_types.v
@@ -394,7 +394,7 @@ fn (mut c Checker) check_shift(mut node ast.InfixExpr, left_type ast.Type, right
 						ast.i64_type { 63 }
 						//
 						ast.byte_type { 7 }
-						ast.u8_type { 7 }
+						// ast.u8_type { 7 }
 						ast.u16_type { 15 }
 						ast.u32_type { 31 }
 						ast.u64_type { 63 }
diff --git a/vlib/v/checker/comptime.v b/vlib/v/checker/comptime.v
index 49db3f5265..2ff3cb7fdf 100644
--- a/vlib/v/checker/comptime.v
+++ b/vlib/v/checker/comptime.v
@@ -143,7 +143,7 @@ fn (mut c Checker) eval_comptime_const_expr(expr ast.Expr, nlevel int) ?ast.Comp
 					ast.i64_type { return 8 }
 					//
 					ast.byte_type { return 1 }
-					ast.u8_type { return 1 }
+					// ast.u8_type { return 1 }
 					ast.u16_type { return 2 }
 					ast.u32_type { return 4 }
 					ast.u64_type { return 8 }