diff --git a/src/lexer/lexer.hpp b/src/lexer/lexer.hpp
index b2d6088..58b057d 100644
--- a/src/lexer/lexer.hpp
+++ b/src/lexer/lexer.hpp
@@ -59,7 +59,7 @@ class Lexer {
           tokens.addReturn(ReturnToken());
         } else if (buffer == "print") {
           tokens.addPrint(PrintToken());
-        } else {
+        } else if (buffer.size() != 0) {
           tokens.addIdentifier(IdentifierToken(buffer));
         }