diff --git a/vtg.preprocessing/R/assign_types.R b/vtg.preprocessing/R/assign_types.R
index 873391e..ff5fb2c 100644
--- a/vtg.preprocessing/R/assign_types.R
+++ b/vtg.preprocessing/R/assign_types.R
@@ -17,7 +17,7 @@
 assign_types <- function(data, types) {
 
   column_names <- names(types)
-
+  vtg::log$debug("Assigning types to columns: ", column_names)
 
   # for each specified column in types set the appropiate type
   for (i in seq_len(length(types))) {
diff --git a/vtg.summary/src/R/RPC_variance_sum.R b/vtg.summary/src/R/RPC_variance_sum.R
index 1a48c90..f9f514e 100644
--- a/vtg.summary/src/R/RPC_variance_sum.R
+++ b/vtg.summary/src/R/RPC_variance_sum.R
@@ -29,7 +29,7 @@ RPC_variance_sum <- function(data, columns, mean, types = NULL,
   data <- vtg.preprocessing::factorize(data)
 
   # execute checks that are common to all RPCs
-  data <- vtg.summary::common_checks_rpc(data, columns, types)
+  data <- vtg.preprocessing::common_checks_rpc(data, columns, types)
   if ("error" %in% names(data)) {
     # Return error message
     return(data)