diff --git a/Examples/test-suite/c/operator_overload_runme.c b/Examples/test-suite/c/operator_overload_runme.c
index 19e01ccb5..1dde8ae8f 100644
--- a/Examples/test-suite/c/operator_overload_runme.c
+++ b/Examples/test-suite/c/operator_overload_runme.c
@@ -1,23 +1,22 @@
+#include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 #include "operator_overload/operator_overload_wrap.h"
 
-#define assert(x,msg) if (!x) { printf("%d: %s\n", x, msg); exit(1); }
-
 int main() {
   operator_overload_Op_sanity_check();
   
   operator_overload_Op *op1 = operator_overload_Op_new_i(1), *op2 = operator_overload_Op_new_i(2), *op3 = operator_overload_Op_copy(op1);
 
-  assert(operator_overload_Op_NotEqual(op1, op2), "neq failed");
+  assert(operator_overload_Op_NotEqual(op1, op2));
   operator_overload_Op_PlusPlusPrefix(op3);
-  assert(operator_overload_Op_EqualEqual(op2, op3), "eqeq failed");
-  assert(operator_overload_Op_GreaterThanEqual(op2, op1), "geq failed");
+  assert(operator_overload_Op_EqualEqual(op2, op3));
+  assert(operator_overload_Op_GreaterThanEqual(op2, op1));
   operator_overload_Op_PlusEqual(op3, op1);
-  assert(operator_overload_Op_LessThan(op1, op2) && operator_overload_Op_LessThan(op2, op3), "lt failed");
-  assert(3 == *operator_overload_Op_IndexInto(op3, operator_overload_Op_IndexIntoConst(op2, operator_overload_Op_Functor(op1))), "[] or () failed");
-  assert(5 == operator_overload_Op_Functor_i(op3, 2), "f(x) failed");
+  assert(operator_overload_Op_LessThan(op1, op2) && operator_overload_Op_LessThan(op2, op3));
+  assert(3 == *operator_overload_Op_IndexInto(op3, operator_overload_Op_IndexIntoConst(op2, operator_overload_Op_Functor(op1))));
+  assert(5 == operator_overload_Op_Functor_i(op3, 2));
   
   operator_overload_Op_delete(op1);
   operator_overload_Op_delete(op2);