diff --git a/server/config/config.go b/server/config/config.go
index 8bf29fbd9278..da2d6d15f0d4 100644
--- a/server/config/config.go
+++ b/server/config/config.go
@@ -294,7 +294,7 @@ func DefaultConfig() *Config {
 			PruningInterval:     "0",
 			MinRetainBlocks:     0,
 			IndexEvents:         make([]string, 0),
-			IAVLCacheSize:       781250, // 50 MB
+			IAVLCacheSize:       781250,
 			IAVLDisableFastNode: false,
 			AppDBBackend:        "",
 		},
diff --git a/server/config/toml.go b/server/config/toml.go
index 967fea563c3c..7e9ad9771bdd 100644
--- a/server/config/toml.go
+++ b/server/config/toml.go
@@ -70,8 +70,7 @@ inter-block-cache = {{ .BaseConfig.InterBlockCache }}
 # ["message.sender", "message.recipient"]
 index-events = [{{ range .BaseConfig.IndexEvents }}{{ printf "%q, " . }}{{end}}]
 
-# IavlCacheSize set the size of the iavl tree cache. 
-# Default cache size is 50mb.
+# IavlCacheSize set the size of the iavl tree cache (in number of nodes).
 iavl-cache-size = {{ .BaseConfig.IAVLCacheSize }}
 
 # IAVLDisableFastNode enables or disables the fast node feature of IAVL.