diff --git a/pes/silicosheets.html b/pes/silicosheets.html
index 744c946..b99c694 100644
--- a/pes/silicosheets.html
+++ b/pes/silicosheets.html
@@ -88,7 +88,7 @@
             <center>
                 <button class="listing" onclick="window.open('./c_cheatsheets/c_install_guide.pdf', '_blank').focus();" type="button">Installation</button><br><br>
                 <button class="listing" onclick="window.open('./c_cheatsheets/c_intro_cheatsheet.pdf', '_blank').focus();" type="button">Introduction</button><br><br>
-                <button class="listing" onclick="window.open('./c_cheatsheets/c_values_and_data_types.pdf', '_blank').focus();" type="button">Values and Data Types</button><br><br>
+                <button class="listing" onclick="window.open('./c_cheatsheets/c_values_and_datatypes.pdf', '_blank').focus();" type="button">Values and Data Types</button><br><br>
             </center>
         </div><br><br>