diff --git a/install.sh b/install.sh
index bb0bddb..f00a1fb 100755
--- a/install.sh
+++ b/install.sh
@@ -6,3 +6,4 @@ install -m 0775 ./ll /usr/bin/ll
 install -m 0775 ./ddu /usr/bin/ddu
 install -m 0775 ./ddud /usr/bin/ddud
 install -m 0775 ./ddd /usr/bin/ddd
+install -m 0775 ./ddb /usr/bin/ddb