diff --git a/Configure b/Configure
index f70c14134a..fce95fb0d5 100755
--- a/Configure
+++ b/Configure
@@ -522,6 +522,7 @@ my @disablables = (
     "shared",
     "siphash",
     "siv",
+    "slh-dsa",
     "sm2",
     "sm2-precomp",
     "sm3",
diff --git a/INSTALL.md b/INSTALL.md
index 31a50eeb48..7413356bb6 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -984,6 +984,11 @@ Do not create shared libraries, only static ones.
 
 See [Notes on shared libraries](#notes-on-shared-libraries) below.
 
+### no-slh-dsa
+
+Disable Stateless Hash Based Digital Signature Standard support.
+(SLH-DSA is based on SPHINCS+. See NIST.FIPS.205)
+
 ### no-sm2-precomp
 
 Disable using the SM2 precomputed table on aarch64 to make the library smaller.