diff --git a/Sources/StringExtensions.swift b/Sources/StringExtensions.swift
index 6e7be190..f0e33904 100644
--- a/Sources/StringExtensions.swift
+++ b/Sources/StringExtensions.swift
@@ -402,7 +402,7 @@ extension String {
             paragraphStyle.lineBreakMode = lineBreakMode!
             attrib.updateValue(paragraphStyle, forKey: NSParagraphStyleAttributeName)
         }
-        let size = CGSize(width: width, height: CGFloat(DBL_MAX))
+        let size = CGSize(width: width, height: CGFloat(Double.greatestFiniteMagnitude))
         return ceil((self as NSString).boundingRect(with: size, options: NSStringDrawingOptions.usesLineFragmentOrigin, attributes:attrib, context: nil).height)
     }