diff --git a/base/graphics.jl b/base/graphics.jl
index a378abdf3e370..0722fe750aed8 100644
--- a/base/graphics.jl
+++ b/base/graphics.jl
@@ -83,9 +83,6 @@ end
 
 BoundingBox() = BoundingBox(NaN, NaN, NaN, NaN)
 
-BoundingBox(a::Real, b::Real, c::Real, d::Real) =
-    BoundingBox(float64(a), float64(b), float64(c), float64(d))
-
 function BoundingBox(points::Point...)
     xmin, xmax, ymin, ymax = NaN, NaN, NaN, NaN
     for p in points