diff --git a/src/lib/external_lgpl/module.mk b/src/lib/external_lgpl/module.mk
index 619a1a5df3..53f1629e39 100644
--- a/src/lib/external_lgpl/module.mk
+++ b/src/lib/external_lgpl/module.mk
@@ -45,4 +45,4 @@
 #			or any of the license implications.
 #
 
-SRCS		 = 	tecs/TECS.cpp
+SRCS		 = 	tecs/tecs.cpp