diff --git a/R/advanced_annotation.R b/R/advanced_annotation.R
index 3013a84..304e5f3 100755
--- a/R/advanced_annotation.R
+++ b/R/advanced_annotation.R
@@ -126,6 +126,7 @@ advanced_annotation <- function(peak_table,
 
 
   # Tool 3: Compute correlations (peak intensity matrix will be the input, so doesn't need to be cut)
+  # also check the galaxy tool to compute correlations
   # ----------------------------
   peak_intensity_matrix <- get_peak_intensity_matrix(peak_table)
   peak_correlation_matrix <- compute_peak_correlations(peak_intensity_matrix, correlation_method = "p")
diff --git a/tests/testthat/test-data/adduct_table.parquet b/tests/testthat/test-data/adduct_table.parquet
new file mode 100644
index 0000000..dd3e4c6
Binary files /dev/null and b/tests/testthat/test-data/adduct_table.parquet differ