diff --git a/Preamble/preamble.tex b/Preamble/preamble.tex
index aea51ca9..26f9f95a 100644
--- a/Preamble/preamble.tex
+++ b/Preamble/preamble.tex
@@ -118,7 +118,7 @@
 % If you would like to use biblatex for your reference management, as opposed to the default `natbibpackage` pass the option `custombib` in the document class. Comment out the previous line to make sure you don't load the natbib package. Uncomment the following lines and specify the location of references.bib file
 
 %\RequirePackage[backend=biber, style=numeric-comp, citestyle=numeric, sorting=nty, natbib=true]{biblatex}
-%\addbibresource{References/references} %Location of references.bib only for biblatex
+%\addbibresource{References/references} %Location of references.bib only for biblatex, Do not omit the .bib extension from the filename.
 
 \fi