diff --git a/test/bugs/bug090.go b/test/bugs/bug090.go
index bcb9095ff2..0654cff9d4 100644
--- a/test/bugs/bug090.go
+++ b/test/bugs/bug090.go
@@ -36,4 +36,10 @@ func main() {
 	i = f3div2;	// BUG: probably shouldn't compile
 	assert(i == c3div2, "i == c3div2 from f3div2");
 	assert(i != f3div2, "i != f3div2");	// BUG: certainly shouldn't fail
+
+	const g float64 = 1.0;
+	i = g;  // BUG: shouldn't compile
+
+	const h float64 = 3.14;
+	i = h;  // BUG: certainly shouldn't compile
 }
diff --git a/test/const.go b/test/const.go
index ced52dc224..f16a8c4b75 100644
--- a/test/const.go
+++ b/test/const.go
@@ -89,10 +89,6 @@ func floats() {
 	assert(i == f0, "i == f0");
 	i = fm1;
 	assert(i == fm1, "i == fm1");
-	i = f1;
-	assert(i == f1, "i == f1");
-	i = f1e3;
-	assert(i == f1e3, "i == f1e3");
 
 	// verify that all are assignable as floats
 	var f float64;