1 files changed, 1 insertions, 1 deletions
diff --git a/value.cc b/value.cc
index 8cb370d..2778e58 100644
--- a/value.cc
+++ b/value.cc
@@ -122,7 +122,7 @@ Value Value::operator - (const Value &v) const
 		return r;
 	}
 	if (type == NUMBER && v.type == NUMBER) {
-		return Value(num + v.num);
+		return Value(num - v.num);
 	}
 	return Value();
 }