diff --git a/doc/reducing-memory-usage.md b/doc/reducing-memory-usage.md
index 333ea0086..60d578ad8 100644
--- a/doc/reducing-memory-usage.md
+++ b/doc/reducing-memory-usage.md
@@ -1,5 +1,4 @@
-In-memory caches
-----------------
+# In-memory caches
 
 The size of some in-memory caches can be reduced. As caches trade off memory usage for performance, usually reducing these have a negative effect on performance.