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-rw-r--r--src/blind-coordinate-field.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/blind-coordinate-field.c b/src/blind-coordinate-field.c
index 3b8a7c6..1c87876 100644
--- a/src/blind-coordinate-field.c
+++ b/src/blind-coordinate-field.c
@@ -46,6 +46,8 @@ main(int argc, char *argv[])
eset_pixel_format(&stream, pixfmt);
SELECT_PROCESS_FUNCTION(&stream);
+ CHECK_N_CHAN(&stream, 4, 4);
+
fprint_stream_head(stdout, &stream);
efflush(stdout, "<stdout>");
process();