diff --git a/configure.ac b/configure.ac
index bba445b..67d7130 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,6 @@
 
 # Create configured output
 AC_CONFIG_FILES([Makefile.interfaces],
-    [./generate_makefile.sh > Makefile.interfaces])
+    [${srcdir}/generate_makefile.sh ${srcdir} > Makefile.interfaces])
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT