diff --git a/backends/llamacpp/src/main.rs b/backends/llamacpp/src/main.rs
index 4afa64e9..1c7c5e4c 100644
--- a/backends/llamacpp/src/main.rs
+++ b/backends/llamacpp/src/main.rs
@@ -57,7 +57,7 @@ struct Args {
     use_mlock: bool,
 
     /// Enable flash attention for faster inference. (EXPERIMENTAL)
-    #[clap(default_value = "false", long, env)]
+    #[clap(default_value = "true", long, env)]
     flash_attention: bool,
 
     /// TODO