diff --git a/core/vm/instructions_test.go b/core/vm/instructions_test.go
index 354d2ce5ab..a143b7d01a 100644
--- a/core/vm/instructions_test.go
+++ b/core/vm/instructions_test.go
@@ -724,7 +724,7 @@ func TestRandom(t *testing.T) {
 		)
 		opRandom(&pc, evm, &ScopeContext{nil, stack, nil})
 		if have, want := stack.len(), 1; have != want {
-			t.Errorf("test '%v': want %d item(s) on stack, have %d: ", tt.name, have, want)
+			t.Errorf("test '%v': want %d item(s) on stack, have %d: ", tt.name, want, have)
 		}
 		actual := stack.pop()
 		expected, overflow := uint256.FromBig(new(big.Int).SetBytes(tt.random.Bytes()))