diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index 7a7c7afb21f1c..38e806134c93a 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -237,6 +237,7 @@ public class Typeface {
                 IoUtils.closeQuietly(fd);
             }
         }
+        fontFamily.freeze();
         callback.onTypefaceRetrieved(Typeface.createFromFamiliesWithDefault(
                 new FontFamily[] {fontFamily}));
     }