diff --git a/step2-DESeq2.R b/step2-DESeq2.R
index 66fc2ac..5404135 100644
--- a/step2-DESeq2.R
+++ b/step2-DESeq2.R
@@ -152,6 +152,8 @@ if(exists("tableWithAnnotations")){
     if(!is.na(geneIDColInAnnotations)){
       annot.df<-ann[match(rownames(resOrdered),ann[,geneIDColInAnnotations]),]
     }
+  } else {
+    cat("The annotation file specified:",tableWithAnnotations," does not exists. It will not be added.\n")
   }
 }