diff --git a/emulator/src/emulator/system/emulator.rs b/emulator/src/emulator/system/emulator.rs
index ebe0f9c..9830dd6 100644
--- a/emulator/src/emulator/system/emulator.rs
+++ b/emulator/src/emulator/system/emulator.rs
@@ -25,7 +25,7 @@ pub fn run_emulator(
     let mut running = Running::Paused;
     let mut step = 0;
     let mut addr;
-    let mut history = Vec::<(u32, Instruction)>::new();
+    let mut history = Vec::<(u32, Instruction)>::with_capacity(32768);
     let size = 256;
 
     state_tx