diff --git a/.gitignore b/.gitignore
index d083c63ea08..380d2eab984 100644
--- a/.gitignore
+++ b/.gitignore
@@ -116,3 +116,6 @@ test/cache/*
 
 libbitcoinconsensus.pc
 contrib/devtools/split-debug.sh
+
+# Output from running db4 installation
+db4/