diff --git a/netpbm/converter/other/fiasco/lib/image.c b/netpbm/converter/other/fiasco/lib/image.c

index 0168734..22e379b 100644

--- a/netpbm/converter/other/fiasco/lib/image.c

+++ b/netpbm/converter/other/fiasco/lib/image.c

@@ -239,7 +239,7 @@ alloc_image (unsigned width, unsigned height, bool_t color, format_e format)

    image->format      = format;

    image->reference_count = 1;

-   strcpy (image->id, "IFIASCO");

+   strncpy (image->id, "IFIASCO", sizeof(image->id));

    for (band = first_band (color); band <= last_band (color); band++)

       if (format == FORMAT_4_2_0 && band != Y)