diff --git a/doc-tools-check-languages.conf b/doc-tools-check-languages.conf
index 10630ce941..247118b573 100644
--- a/doc-tools-check-languages.conf
+++ b/doc-tools-check-languages.conf
@@ -36,6 +36,7 @@ declare -A SPECIAL_BOOKS=(
     ["ha-guide"]="RST"
     ["image-guide"]="RST"
     ["install-guide"]="RST"
+    ["install-guide-debconf"]="RST"
     ["networking-guide"]="RST"
     ["ops-guide"]="RST"
     ["user-guide"]="RST"