diff --git a/repl/repl_main.c b/repl/repl_main.c
index 3d539f5..5f21cd0 100644
--- a/repl/repl_main.c
+++ b/repl/repl_main.c
@@ -53,6 +53,7 @@ void repl() {
 		Toy_Compiler compiler;
 
 		Toy_initLexer(&lexer, input);
+		Toy_private_setComments(&lexer, false); //BUGFIX: disable comments here
 		Toy_initParser(&parser, &lexer);
 		Toy_initCompiler(&compiler);
 
diff --git a/source/toy_lexer.c b/source/toy_lexer.c
index af24bbe..3ed3b42 100644
--- a/source/toy_lexer.c
+++ b/source/toy_lexer.c
@@ -12,6 +12,7 @@ static void cleanLexer(Toy_Lexer* lexer) {
 	lexer->start = 0;
 	lexer->current = 0;
 	lexer->line = 1;
+	lexer->commentsEnabled = true;
 }
 
 static bool isAtEnd(Toy_Lexer* lexer) {
@@ -54,6 +55,10 @@ static void eatWhitespace(Toy_Lexer* lexer) {
 
 		//comments
 		case '/':
+			if (!lexer->commentsEnabled) {
+				return;
+			}
+
 			//eat the line
 			if (peekNext(lexer) == '/') {
 				while (advance(lexer) != '\n' && !isAtEnd(lexer));
@@ -372,3 +377,7 @@ void Toy_printToken(Toy_Token* token) {
 
 	printf("\n");
 }
+
+void Toy_private_setComments(Toy_Lexer* lexer, bool enabled) {
+	lexer->commentsEnabled = enabled;
+}
\ No newline at end of file
diff --git a/source/toy_lexer.h b/source/toy_lexer.h
index c7b544d..606fd01 100644
--- a/source/toy_lexer.h
+++ b/source/toy_lexer.h
@@ -9,6 +9,7 @@ typedef struct {
 	int start; //start of the token
 	int current; //current position of the lexer
 	int line; //track this for error handling
+	bool commentsEnabled; //BUGFIX: enable comments (disabled in repl)
 } Toy_Lexer;
 
 //tokens are intermediaries between lexers and parsers
@@ -24,3 +25,5 @@ Toy_Token Toy_scanLexer(Toy_Lexer* lexer);
 
 //for debugging
 void Toy_printToken(Toy_Token* token);
+
+void Toy_private_setComments(Toy_Lexer* lexer, bool enabled);