diff -r bd596c95395b -r 5f79c1a30f9f nbproject/project.xml
--- a/nbproject/project.xml	Thu Dec 20 00:26:00 2018 +0100
+++ b/nbproject/project.xml	Thu Jan 17 23:26:49 2019 +0100
@@ -5,7 +5,7 @@
         <data xmlns="http://www.netbeans.org/ns/make-project/1">
             <name>relpipe-lib-writer.cpp</name>
             <c-extensions/>
-            <cpp-extensions>cc,cpp</cpp-extensions>
+            <cpp-extensions>cpp</cpp-extensions>
             <header-extensions>h</header-extensions>
             <sourceEncoding>UTF-8</sourceEncoding>
             <make-dep-projects/>