diff --git a/compiler/expressions.go b/compiler/expressions.go
index 2768e3d2a..11b2840ba 100644
--- a/compiler/expressions.go
+++ b/compiler/expressions.go
@@ -1128,8 +1128,6 @@ func (fc *funcContext) translateConversion(expr ast.Expr, desiredType types.Type
 					return fc.fixNumber(fc.formatParenExpr("%1l + ((%1h >> 31) * 4294967296)", expr), t)
 				}
 				return fc.fixNumber(fc.formatExpr("%s.$low", fc.translateExpr(expr)), t)
-			case isFloat(basicExprType):
-				return fc.formatParenExpr("%e >> 0", expr)
 			case types.Identical(exprType, types.Typ[types.UnsafePointer]):
 				return fc.translateExpr(expr)
 			default:
diff --git a/tests/numeric_test.go b/tests/numeric_test.go
index df06db584..4eaa678c0 100644
--- a/tests/numeric_test.go
+++ b/tests/numeric_test.go
@@ -5,6 +5,8 @@ import (
 	"runtime"
 	"testing"
 	"testing/quick"
+
+	"github.com/gopherjs/gopherjs/js"
 )
 
 // naiveMul64 performs 64-bit multiplication without using the multiplication
@@ -93,3 +95,26 @@ func BenchmarkMul64(b *testing.B) {
 		}
 	})
 }
+
+func TestIssue733(t *testing.T) {
+	if runtime.GOOS != "js" {
+		t.Skip("test uses GopherJS-specific features")
+	}
+
+	t.Run("sign", func(t *testing.T) {
+		f := float64(-1)
+		i := uint32(f)
+		underlying := js.InternalObject(i).Float() // Get the raw JS number behind i.
+		if want := float64(4294967295); underlying != want {
+			t.Errorf("Got: uint32(float64(%v)) = %v. Want: %v.", f, underlying, want)
+		}
+	})
+	t.Run("truncation", func(t *testing.T) {
+		f := float64(300)
+		i := uint8(f)
+		underlying := js.InternalObject(i).Float() // Get the raw JS number behind i.
+		if want := float64(44); underlying != want {
+			t.Errorf("Got: uint32(float64(%v)) = %v. Want: %v.", f, underlying, want)
+		}
+	})
+}