--- a/bpgenc.c	Wed May 10 14:09:07 2017 +0300
+++ b/bpgenc.c	Wed May 10 14:10:45 2017 +0300
@@ -1130,7 +1130,7 @@
         !TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &img_spp) ||
         !TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &img_depth))
     {
-        fprintf(stderr, "TIFF file lacks basic fields!\n");
+        fprintf(stderr, "TIFF file '%s' lacks basic fields!\n", filename);
         goto err;
     }
 
@@ -1364,6 +1364,7 @@
     return img;
 }
 
+
 Image *read_png(BPGMetaData **pmd,
                 FILE *f, BPGColorSpaceEnum color_space, int out_bit_depth,
                 int limited_range, int premultiplied_alpha)
@@ -1850,6 +1851,7 @@
     return img;
 }
 
+
 static const char PROBE_TIFF_MAGIC_LE[] = { 'I', 'I', 42, 0 };
 static const char PROBE_TIFF_MAGIC_BE[] = { 'M', 'M', 0, 42 };
 #define PROBE_BUF_SIZE 8
@@ -3110,7 +3112,7 @@
            "-hash                include MD5 hash in HEVC bitstream\n"
            "-keepmetadata        keep the metadata (from JPEG: EXIF, ICC profile, XMP, from PNG: ICC profile)\n"
            "-v                   show debug messages\n"
-               );
+           );
     }
 
     exit(1);