diff --git a/packages/mdc-ripple/foundation.js b/packages/mdc-ripple/foundation.js
index 865e69db8ea..65c12b93df3 100644
--- a/packages/mdc-ripple/foundation.js
+++ b/packages/mdc-ripple/foundation.js
@@ -565,7 +565,7 @@ class MDCRippleFoundation extends MDCFoundation {
     this.maxRadius_ = this.adapter_.isUnbounded() ? maxDim : getBoundedRadius();
 
     // Ripple is sized as a fraction of the largest dimension of the surface, then scales up using a CSS scale transform
-    this.initialSize_ = maxDim * MDCRippleFoundation.numbers.INITIAL_ORIGIN_SCALE;
+    this.initialSize_ = Math.floor(maxDim * MDCRippleFoundation.numbers.INITIAL_ORIGIN_SCALE);
     this.fgScale_ = this.maxRadius_ / this.initialSize_;
 
     this.updateLayoutCssVars_();
diff --git a/test/screenshot/golden.json b/test/screenshot/golden.json
index 27ad636f931..2075acb689e 100644
--- a/test/screenshot/golden.json
+++ b/test/screenshot/golden.json
@@ -447,9 +447,9 @@
     }
   },
   "spec/mdc-icon-button/classes/baseline-icon-button-toggle.html": {
-    "public_url": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/10/17_42_51_602/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html?utm_source=golden_json",
+    "public_url": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/13/15_39_02_591/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html?utm_source=golden_json",
     "screenshots": {
-      "desktop_windows_chrome@latest": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/05/20_29_19_047/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html.windows_chrome_68.png",
+      "desktop_windows_chrome@latest": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/13/15_39_02_591/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html.windows_chrome_69.png",
       "desktop_windows_edge@latest": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/05/20_29_19_047/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html.windows_edge_17.png",
       "desktop_windows_firefox@latest": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/10/17_42_51_602/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html.windows_firefox_62.png",
       "desktop_windows_ie@11": "https://storage.googleapis.com/mdc-web-screenshot-tests/travis/2018/09/05/20_29_19_047/spec/mdc-icon-button/classes/baseline-icon-button-toggle.html.windows_ie_11.png"