diff --git a/lib/Makefile.am b/lib/Makefile.am
index 5f17fca..21d807a 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -71,6 +71,10 @@
 SUBDIRS += dart
 endif
 
+if WITH_DOTNETCORE
+SUBDIRS += netcore
+endif
+
 if WITH_GO
 SUBDIRS += go
 endif