diff --git a/extra/st.d/Makefile b/extra/st.d/Makefile
index ad8dbc3..3b46490 100644
--- a/extra/st.d/Makefile
+++ b/extra/st.d/Makefile
@@ -19,6 +19,7 @@ FILES = \
 
 ${package}:
 	export url="git://git.suckless.org" pkg=${package} commit=${version} && ${GITCLONE}
+	$(SHA256D) "b734416dd95db2e5bc029f25c28a62e28b7b4f22558488e215f7477a0f092899"
 
 prepare: ${SOURCES}
 	mv ${package}  build/