diff --git a/addons/xterm-addon-webgl/src/renderLayer/CursorRenderLayer.ts b/addons/xterm-addon-webgl/src/renderLayer/CursorRenderLayer.ts
index 2ade8007..310236b6 100644
--- a/addons/xterm-addon-webgl/src/renderLayer/CursorRenderLayer.ts
+++ b/addons/xterm-addon-webgl/src/renderLayer/CursorRenderLayer.ts
@@ -302,7 +302,7 @@ class CursorBlinkStateManager {
     // the regular interval is setup in order to support restarting the blink
     // animation in a lightweight way (without thrashing clearInterval and
     // setInterval).
-    this._blinkStartTimeout = <number><any>setTimeout(() => {
+    this._blinkStartTimeout = window.setTimeout(() => {
       // Check if another animation restart was requested while this was being
       // started
       if (this._animationTimeRestarted) {
@@ -322,7 +322,7 @@ class CursorBlinkStateManager {
       });
 
       // Setup the blink interval
-      this._blinkInterval = <number><any>setInterval(() => {
+      this._blinkInterval = window.setInterval(() => {
         // Adjust the animation time if it was restarted
         if (this._animationTimeRestarted) {
           // calc time diff
@@ -360,6 +360,9 @@ class CursorBlinkStateManager {
   }
 
   public resume(terminal: Terminal): void {
+    // Clear out any existing timers just in case
+    this.pause();
+
     this._animationTimeRestarted = undefined;
     this._restartInterval();
     this.restartBlinkAnimation(terminal);
diff --git a/src/browser/renderer/CursorRenderLayer.ts b/src/browser/renderer/CursorRenderLayer.ts
index 8b25667b..607180ae 100644
--- a/src/browser/renderer/CursorRenderLayer.ts
+++ b/src/browser/renderer/CursorRenderLayer.ts
@@ -306,7 +306,7 @@ class CursorBlinkStateManager {
     // the regular interval is setup in order to support restarting the blink
     // animation in a lightweight way (without thrashing clearInterval and
     // setInterval).
-    this._blinkStartTimeout = <number><any>setTimeout(() => {
+    this._blinkStartTimeout = window.setTimeout(() => {
       // Check if another animation restart was requested while this was being
       // started
       if (this._animationTimeRestarted) {
@@ -326,7 +326,7 @@ class CursorBlinkStateManager {
       });
 
       // Setup the blink interval
-      this._blinkInterval = <number><any>setInterval(() => {
+      this._blinkInterval = window.setInterval(() => {
         // Adjust the animation time if it was restarted
         if (this._animationTimeRestarted) {
           // calc time diff
@@ -364,6 +364,9 @@ class CursorBlinkStateManager {
   }
 
   public resume(): void {
+    // Clear out any existing timers just in case
+    this.pause();
+
     this._animationTimeRestarted = undefined;
     this._restartInterval();
     this.restartBlinkAnimation();