diff --git a/externals/Makefile b/externals/Makefile
index 70dcd0f62493c162e01911386c20a37c3cfebb15..74d9146e59a827f5a2a222821515d487ab7773ce 100644
--- a/externals/Makefile
+++ b/externals/Makefile
@@ -474,7 +474,7 @@ ext13_clean:
 FFTEASE_NAME=fftease
 
 fftease:
-	make -C $(externals_src)/$(FFTEASE_NAME)
+	make -C $(externals_src)/$(FFTEASE_NAME) PD_PATH=$(pd_src)
 
 fftease_install:
 	#make -C $(externals_src)/$(FFTEASE_NAME) DESTDIR="$(DESTDIR)" \
@@ -1149,7 +1149,7 @@ loaders-libdir_clean:
 LYON_NAME=lyonpotpourri
 
 lyonpotpourri:
-	make -C $(externals_src)/$(LYON_NAME)
+	make -C $(externals_src)/$(LYON_NAME) PD_PATH=$(pd_src)
 
 lyonpotpourri_install:
 	#make -C $(externals_src)/$(LYON_NAME) DESTDIR="$(DESTDIR)" \