diff --git a/source/mjpeg_decoder.cc b/source/mjpeg_decoder.cc
index 80e381dd6..adba832f5 100644
--- a/source/mjpeg_decoder.cc
+++ b/source/mjpeg_decoder.cc
@@ -417,7 +417,10 @@ void init_source(j_decompress_ptr cinfo) {
 boolean fill_input_buffer(j_decompress_ptr cinfo) {
   BufferVector* buf_vec = reinterpret_cast<BufferVector*>(cinfo->client_data);
   if (buf_vec->pos >= buf_vec->len) {
+    // Don't assert-fail when fuzzing.
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
     assert(0 && "No more data");
+#endif
     // ERROR: No more data
     return FALSE;
   }