diff --git a/lexer/lexer_test.go b/lexer/lexer_test.go
index 4a6fc96..bd44956 100644
--- a/lexer/lexer_test.go
+++ b/lexer/lexer_test.go
@@ -93,7 +93,7 @@ func TestTokenizeNumbers (test *testing.T) {
 	checkTokenSlice("../tests/lexer/numbers.arf", []Token {
 		Token { kind: TokenKindUInt, value: uint64(0) },
 		Token { kind: TokenKindNewline },
-		Token { kind: TokenKindUInt, value: uint64(5) },
+		Token { kind: TokenKindUInt, value: uint64(8) },
 		Token { kind: TokenKindNewline },
 		Token { kind: TokenKindUInt, value: uint64(83628266) },
 		Token { kind: TokenKindNewline },
diff --git a/lexer/numbers.go b/lexer/numbers.go
index 4dce92b..7093750 100644
--- a/lexer/numbers.go
+++ b/lexer/numbers.go
@@ -1,7 +1,5 @@
 package lexer
 
-import "git.tebibyte.media/sashakoshka/arf/file"
-
 // tokenizeSymbolBeginning lexes a token that starts with a number.
 func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error) {
 	var number   uint64
@@ -23,11 +21,6 @@ func (lexer *LexingOperation) tokenizeNumberBeginning (negative bool) (err error
 			number, fragment, isFloat, err = lexer.tokenizeNumber(10)
 		} else if lexer.char >= '0' && lexer.char <= '9' {
 			number, fragment, isFloat, err = lexer.tokenizeNumber(8)
-		} else {
-			return file.NewError (
-				lexer.file.Location(1),
-				"unexpected character in number literal",
-				file.ErrorKindError)
 		}
 	} else {
 		number, fragment, isFloat, err = lexer.tokenizeNumber(10)
diff --git a/tests/lexer/numbers.arf b/tests/lexer/numbers.arf
index e0da9bb..2cb6de4 100644
--- a/tests/lexer/numbers.arf
+++ b/tests/lexer/numbers.arf
@@ -1,5 +1,6 @@
 :arf
 0
+8
 83628266
 0b100111111000001000011101010
 0x4Fc10Ea