--- a/nbproject/configurations.xml	Sat Jan 19 16:01:08 2019 +0100
+++ b/nbproject/configurations.xml	Sun Jan 20 01:02:40 2019 +0100
@@ -82,6 +82,7 @@
               <pElem>../relpipe-lib-reader.cpp/include</pElem>
               <pElem>../relpipe-lib-writer.cpp/include</pElem>
               <pElem>../relpipe-lib-cli.cpp/include</pElem>
+              <pElem>/usr/include/guile/2.2</pElem>
               <pElem>build/Debug/src</pElem>
             </incDir>
           </ccTool>