diff --git a/src/binop.hpp b/src/binop.hpp
index 130b02c..4d91f90 100644
--- a/src/binop.hpp
+++ b/src/binop.hpp
@@ -11,10 +11,10 @@ namespace lily {
 
     static std::string op_supercombinator(binop op) {
         switch(op) {
-            case binop::add: return "+";
-            case binop::subtract: return "-";
-            case binop::times: return "*";
-            case binop::divide: return "/";
+            case binop::add: return "op_add";
+            case binop::subtract: return "op_sub";
+            case binop::times: return "op_times";
+            case binop::divide: return "op_divide";
         }
     }
 };