diff --git a/core/asm/asm.go b/core/asm/asm.go
index 7c1e14ec01..294eb6ffaa 100644
--- a/core/asm/asm.go
+++ b/core/asm/asm.go
@@ -34,7 +34,7 @@ type instructionIterator struct {
 	started bool
 }
 
-// NewInstructionIterator create a new instruction iterator.
+// NewInstructionIterator creates a new instruction iterator.
 func NewInstructionIterator(code []byte) *instructionIterator {
 	it := new(instructionIterator)
 	it.code = code
diff --git a/core/asm/compiler.go b/core/asm/compiler.go
index 75bf726c96..02c589b2c1 100644
--- a/core/asm/compiler.go
+++ b/core/asm/compiler.go
@@ -49,7 +49,7 @@ func NewCompiler(debug bool) *Compiler {
 	}
 }
 
-// Feed feeds tokens in to ch and are interpreted by
+// Feed feeds tokens into ch and are interpreted by
 // the compiler.
 //
 // feed is the first pass in the compile stage as it collects the used labels in the
diff --git a/core/asm/lex_test.go b/core/asm/lex_test.go
index 173031521f..1e62d776d4 100644
--- a/core/asm/lex_test.go
+++ b/core/asm/lex_test.go
@@ -72,12 +72,12 @@ func TestLexer(t *testing.T) {
 			input:  "@label123",
 			tokens: []token{{typ: lineStart}, {typ: label, text: "label123"}, {typ: eof}},
 		},
-		// comment after label
+		// Comment after label
 		{
 			input:  "@label123 ;; comment",
 			tokens: []token{{typ: lineStart}, {typ: label, text: "label123"}, {typ: eof}},
 		},
-		// comment after instruction
+		// Comment after instruction
 		{
 			input:  "push 3 ;; comment\nadd",
 			tokens: []token{{typ: lineStart}, {typ: element, text: "push"}, {typ: number, text: "3"}, {typ: lineEnd, text: "\n"}, {typ: lineStart, lineno: 1}, {typ: element, lineno: 1, text: "add"}, {typ: eof, lineno: 1}},