--- a/gfx/qcms/iccread.c
+++ b/gfx/qcms/iccread.c
@@ -222,16 +222,20 @@ static struct tag_index read_tag_table(q
 // ignored.
 qcms_bool qcms_profile_is_bogus(qcms_profile *profile)
 {
        float sum[3], target[3], tolerance[3];
        float rX, rY, rZ, gX, gY, gZ, bX, bY, bZ;
        bool negative;
        unsigned i;
 
+       // We currently only check the bogosity of RGB profiles
+       if (profile->color_space != RGB_SIGNATURE)
+	       return false;
+
        rX = s15Fixed16Number_to_float(profile->redColorant.X);
        rY = s15Fixed16Number_to_float(profile->redColorant.Y);
        rZ = s15Fixed16Number_to_float(profile->redColorant.Z);
 
        gX = s15Fixed16Number_to_float(profile->greenColorant.X);
        gY = s15Fixed16Number_to_float(profile->greenColorant.Y);
        gZ = s15Fixed16Number_to_float(profile->greenColorant.Z);