diff --git a/cmd/evm/internal/compiler/compiler.go b/cmd/evm/internal/compiler/compiler.go
index 753ca6226..54981b669 100644
--- a/cmd/evm/internal/compiler/compiler.go
+++ b/cmd/evm/internal/compiler/compiler.go
@@ -25,7 +25,7 @@ import (
 
 func Compile(fn string, src []byte, debug bool) (string, error) {
 	compiler := asm.NewCompiler(debug)
-	compiler.Feed(asm.Lex(fn, src, debug))
+	compiler.Feed(asm.Lex(src, debug))
 
 	bin, compileErrors := compiler.Compile()
 	if len(compileErrors) > 0 {
diff --git a/core/asm/lex_test.go b/core/asm/lex_test.go
index e6901d4e3..16e0ad458 100644
--- a/core/asm/lex_test.go
+++ b/core/asm/lex_test.go
@@ -22,7 +22,7 @@ import (
 )
 
 func lexAll(src string) []token {
-	ch := Lex("test.asm", []byte(src), false)
+	ch := Lex([]byte(src), false)
 
 	var tokens []token
 	for i := range ch {
diff --git a/core/asm/lexer.go b/core/asm/lexer.go
index 91caeb27b..00526242e 100644
--- a/core/asm/lexer.go
+++ b/core/asm/lexer.go
@@ -95,7 +95,7 @@ type lexer struct {
 
 // lex lexes the program by name with the given source. It returns a
 // channel on which the tokens are delivered.
-func Lex(name string, source []byte, debug bool) <-chan token {
+func Lex(source []byte, debug bool) <-chan token {
 	ch := make(chan token)
 	l := &lexer{
 		input:  string(source),