diff --git a/Makefile b/Makefile
index d727108..f1928f9 100644
--- a/Makefile
+++ b/Makefile
@@ -16,4 +16,5 @@ datafiles = \
 # Katja Vetter. You can get it from:
 # https://github.com/pure-data/pd-lib-builder
 
-include pd-lib-builder/Makefile.pdlibbuilder
+PDLIBBUILDER_DIR=pd-lib-builder/
+include $(PDLIBBUILDER_DIR)/Makefile.pdlibbuilder