diff --git a/R/rescale_imagej_inputs.R b/R/rescale_imagej_inputs.R
index 1b06cdf..5d7a0ae 100644
--- a/R/rescale_imagej_inputs.R
+++ b/R/rescale_imagej_inputs.R
@@ -60,7 +60,7 @@
 #' 
 #' #    Scale factors are computed that are necessary downstream (i.e. with
 #' #    prep_imagej_*() functions)
-#' sample_info_new[, setdiff(colnames(sample_info_new, sample_info))]
+#' sample_info_new[, setdiff(colnames(sample_info_new), colnames(sample_info))]
 #' 
 #' #    Image are produced that are ready for alignment in Fiji
 #' list.files(out_dir)
diff --git a/man/rescale_imagej_inputs.Rd b/man/rescale_imagej_inputs.Rd
index cee95f3..c794849 100644
--- a/man/rescale_imagej_inputs.Rd
+++ b/man/rescale_imagej_inputs.Rd
@@ -64,7 +64,7 @@ sample_info_new = rescale_imagej_inputs(sample_info, out_dir = out_dir)
 
 #    Scale factors are computed that are necessary downstream (i.e. with
 #    prep_imagej_*() functions)
-sample_info_new[, setdiff(colnames(sample_info_new, sample_info))]
+sample_info_new[, setdiff(colnames(sample_info_new), colnames(sample_info))]
 
 #    Image are produced that are ready for alignment in Fiji
 list.files(out_dir)