diff --git a/src/tiff/tiffread.c b/src/tiff/tiffread.c
index cd6a46d..550f618 100644
--- a/src/tiff/tiffread.c
+++ b/src/tiff/tiffread.c
@@ -84,6 +84,9 @@ Image *read_baseline_tiff(const char *file, Arena *arena) {
   TiffIFD ifd = read_ifd(fp, &header, header.first_ifd_offset, arena);
 
   TiffImage img = read_fields(fp, &header, &ifd);
+  assert((img.type == TIFF_IMAGE_TYPE_RGB) &&
+         "Currently, only RGB images are supported");
+
   u64 img_byte_count = sizeof(Pixel) * img.image_width * img.image_length;
 
   Arena *temp = NULL;
@@ -338,9 +341,6 @@ bool read_strip_data(FILE *fp, const TiffHdr *header, const TiffImage *img,
 
 void read_strips(FILE *fp, const TiffImage *img, const TiffStrip *strips,
                  Pixel *buf) {
-  assert((img->sample_count == 3 || img->sample_count == 4) &&
-         "Only RGB or RGBA images supported");
-
   u64 position = 0;
   for (u64 i = 0; i < img->strip_count; ++i) {
     const TiffStrip *strip = &(strips[i]);