diff --git a/src/utils/SkFrontBufferedStream.cpp b/src/utils/SkFrontBufferedStream.cpp
index 8cb3931..80a2bcf 100644
--- a/src/utils/SkFrontBufferedStream.cpp
+++ b/src/utils/SkFrontBufferedStream.cpp
@@ -175,7 +175,7 @@
 
     // Buffer any more data that should be buffered, and copy it to the
     // destination.
-    if (size > 0 && fBufferedSoFar < fBufferSize) {
+    if (size > 0 && fBufferedSoFar < fBufferSize && !fStream->isAtEnd()) {
         const size_t buffered = this->bufferAndWriteTo(dst, size);
 
         // Update the remaining number of bytes needed to read