diff --git a/vram/MemArbiter_Test.bsv b/vram/MemArbiter_Test.bsv
index fca0888..8bb0744 100644
--- a/vram/MemArbiter_Test.bsv
+++ b/vram/MemArbiter_Test.bsv
@@ -71,6 +71,7 @@ interface TB;
 endinterface
 
 module mkArbiterTB(MemArbiter#(n, Addr) dut, Vector#(m, TestCase#(n)) tests, TB ifc);
+   let testflags <- mkTestFlags();
    let cycles <- mkCycleCounter();
 
    Reg#(Bit#(TLog#(m))) idx <- mkReg(0);
@@ -113,7 +114,8 @@ module mkArbiterTB(MemArbiter#(n, Addr) dut, Vector#(m, TestCase#(n)) tests, TB
          got_grants[i] = dut.ports[i].grant();
 
       $display("RUN %s (%0d)", tests[idx].name, idx);
-      if (got_grants != want_grants || got_conflict_out != want_conflict_out) begin
+      let err = (got_grants != want_grants || got_conflict_out != want_conflict_out);
+      if (err || testflags.verbose) begin
          $display("input:");
          for (Integer i=0; i<valueOf(n); i=i+1)
             $display("    ", $format("%0d", i), ": ", req_s(reqs[i]));
@@ -125,8 +127,8 @@ module mkArbiterTB(MemArbiter#(n, Addr) dut, Vector#(m, TestCase#(n)) tests, TB
 
          $display("  want grants: ", fshow(tests[idx].want_grants));
          $display("  want granted: ", fshow(want_conflict_out));
-         dynamicAssert(False, "wrong arbiter output");
       end
+      dynamicAssert(!err, "wrong arbiter output");
 
       dynamicAssert(cycles == 1, "arbiter took more than 0 cycles");