diff --git a/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/StringValue.java b/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/StringValue.java
index d2386ae..e04b5c0 100644
--- a/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/StringValue.java
+++ b/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/StringValue.java
@@ -44,6 +44,9 @@ public final class StringValue extends PrimitiveValue {
 		else if (other instanceof StringValue val) return value.length() == val.value.length() && value.equals(val.value);
 		else return false;
 	}
+	@Override public String toString() {
+		return value;
+	}
 
 	@Override public ObjectValue getPrototype(Environment env) { return env.get(STRING_PROTO); }
 
diff --git a/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/VoidValue.java b/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/VoidValue.java
index 6354625..67938a1 100644
--- a/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/VoidValue.java
+++ b/src/main/java/me/topchetoeu/jscript/runtime/values/primitives/VoidValue.java
@@ -31,6 +31,10 @@ public final class VoidValue extends PrimitiveValue {
 		return Arrays.asList(name);
 	}
 
+	@Override public String toString() {
+		return name;
+	}
+
 	public VoidValue(String name, String type) {
 		this.name = name;
 		this.type = type;