diff --git a/examples/decoder_jpeg.cc b/examples/decoder_jpeg.cc
index f59db4ce35..65b5769412 100644
--- a/examples/decoder_jpeg.cc
+++ b/examples/decoder_jpeg.cc
@@ -357,7 +357,7 @@ InputImage loadJPEG(const char* filename)
 
     //read_raw = false;
 
-    cinfo.raw_data_out = read_raw;
+    cinfo.raw_data_out = boolean(read_raw);
 
     jpeg_start_decompress(&cinfo);