diff --git a/graphics/java/android/graphics/drawable/RippleShader.java b/graphics/java/android/graphics/drawable/RippleShader.java
index a9b24470bbb5..4608d0276b49 100644
--- a/graphics/java/android/graphics/drawable/RippleShader.java
+++ b/graphics/java/android/graphics/drawable/RippleShader.java
@@ -71,7 +71,8 @@ final class RippleShader extends RuntimeShader {
             + "  float thickness = 0.3 * radius;\n"
             + "  float currentRadius = radius * progress;\n"
             + "  float circle_outer = softCircle(uv, xy, currentRadius + thickness, blur);\n"
-            + "  float circle_inner = softCircle(uv, xy, currentRadius - thickness, blur);\n"
+            + "  float circle_inner = softCircle(uv, xy, max(currentRadius - thickness, 0.), "
+            + "    blur);\n"
             + "  return saturate(circle_outer - circle_inner);\n"
             + "}\n"
             + "float subProgress(float start, float end, float progress) {\n"