diff --git a/PKHUD/PKHUD.swift b/PKHUD/PKHUD.swift
index 63a214f..a6ca0b9 100644
--- a/PKHUD/PKHUD.swift
+++ b/PKHUD/PKHUD.swift
@@ -29,7 +29,22 @@ open class PKHUD: NSObject {
     /// not be shown at all.
     /// This may be used to prevent HUD display for very short tasks.
     /// Defaults to 0 (no grace time).
-    public var graceTime: TimeInterval = 0
+    @available(*, deprecated, message: "Will be removed with Swift4 support, use gracePeriod instead")
+    public var graceTime: TimeInterval {
+        get {
+            return gracePeriod
+        }
+        set(newPeriod) {
+            gracePeriod = newPeriod
+        }
+    }
+
+    /// Grace period is the time (in seconds) that the invoked method may be run without
+    /// showing the HUD. If the task finishes before the grace time runs out, the HUD will
+    /// not be shown at all.
+    /// This may be used to prevent HUD display for very short tasks.
+    /// Defaults to 0 (no grace time).
+    public var gracePeriod: TimeInterval = 0
     fileprivate var graceTimer: Timer?
 
     // MARK: Public
@@ -110,8 +125,8 @@ open class PKHUD: NSObject {
         }
 
         // If the grace time is set, postpone the HUD display
-        if graceTime > 0.0 {
-            let timer = Timer(timeInterval: graceTime, target: self, selector: #selector(PKHUD.handleGraceTimer(_:)), userInfo: nil, repeats: false)
+        if gracePeriod > 0.0 {
+            let timer = Timer(timeInterval: gracePeriod, target: self, selector: #selector(PKHUD.handleGraceTimer(_:)), userInfo: nil, repeats: false)
             RunLoop.current.add(timer, forMode: .commonModes)
             graceTimer = timer
         } else {