diff --git a/semiconductor_summary.tex b/semiconductor_summary.tex
index e2751efb1570fa54cbf9ab0a9b3c066550565a02..c9c13c744a30ba29c2665714e8266fd972671e86 100644
--- a/semiconductor_summary.tex
+++ b/semiconductor_summary.tex
@@ -38,13 +38,13 @@
 
 \tableofcontents
 
-\include{01_fundamentals.tex}
-\include{02_carrier_transport.tex}
-\include{03_pn_junction_basics.tex}
-\include{04_pn_junction.tex}
-\include{05_pn_junction_bias.tex}
-\include{06_pn_junction_diode.tex}
-\include{07_diode_applications.tex}
-\include{08_bjt.tex}
-\include{09_bjt_small_signal.tex}
+\include{01_fundamentals}
+\include{02_carrier_transport}
+\include{03_pn_junction_basics}
+\include{04_pn_junction}
+\include{05_pn_junction_bias}
+\include{06_pn_junction_diode}
+\include{07_diode_applications}
+\include{08_bjt}
+\include{09_bjt_small_signal}
 \end{document}