--- a/ca-certificates/mozilla/Makefile
+++ b/ca-certificates/mozilla/Makefile
@@ -2,8 +2,11 @@
 # Makefile
 #
 
-all:
-	python3 certdata2pem.py
+certdata2pem: certdata2pem.c
+	$(BUILD_CC) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) $^ -o $@
+
+all: certdata2pem
+	./certdata2pem
 
 clean:
 	-rm -f *.crt