diff --git a/Makefile b/Makefile
index 6b0e3bc..6894ccb 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,9 @@ PGADMIN_INSTALL_CMD = pip install --use-wheel --find-links=${PGADMIN_DIST} ${PGA
 
 
 define create_manifest
-@echo 'recursive-include ${PGADMIN_SRC_DIR} *\nglobal-exclude pgadmin4.db *.pyc' > ${PGADMIN_MANIFEST}
+@echo 'recursive-include ${PGADMIN_SRC_DIR} * '> ${PGADMIN_MANIFEST}
+@echo 'global-exclude ${PGADMIN_SRC_DIR}/pgadmin4.db '>> ${PGADMIN_MANIFEST}
+@echo 'global-exclude ${PGADMIN_SRC_DIR}/*.pyc '>> ${PGADMIN_MANIFEST}
 endef
 
 define build