diff --git a/vram/VRAM_Test.bsv b/vram/VRAM_Test.bsv
index 5164d86..2f8a031 100644
--- a/vram/VRAM_Test.bsv
+++ b/vram/VRAM_Test.bsv
@@ -105,6 +105,7 @@ module mkTestFull(FSM);
 
    let fsm <- mkFSM(seq
       dut.cpu.request.put(VRAMRequest{addr: 1, data: tagged Valid 42});
+      dut.cpu.request.put(VRAMRequest{addr: 2, data: tagged Valid 45});
       dut.cpu.request.put(VRAMRequest{addr: 1, data: tagged Invalid});
       action
          let resp <- dut.cpu.response.get();
@@ -112,6 +113,13 @@ module mkTestFull(FSM);
             $display("vram read: ", fshow(resp));
          dynamicAssert(resp.data == 42, "wrong data read after writing");
       endaction
+      dut.cpu.request.put(VRAMRequest{addr: 2, data: tagged Invalid});
+      action
+         let resp <- dut.cpu.response.get();
+         if (testflags.verbose)
+            $display("vram read: ", fshow(resp));
+         dynamicAssert(resp.data == 45, "wrong data read after writing");
+      endaction
    endseq);
    return fsm;
 endmodule