diff --git a/README.rst b/README.rst
index 8bfae60..063cf56 100644
--- a/README.rst
+++ b/README.rst
@@ -8,6 +8,7 @@ Requirements
 
 * libgd
 * sqlite3
+* leveldb (optional, set ENABLE_LEVELDB=1 in CMake to enable leveldb support)
 
 Compilation
 -----------