diff --git a/src/util/system_info.rs b/src/util/system_info.rs
index a9b5efd..a01ae97 100644
--- a/src/util/system_info.rs
+++ b/src/util/system_info.rs
@@ -26,7 +26,7 @@ pub struct Process {
 }
 
 impl Process {
-    pub fn pid(&self) -> u32 {
+    pub const fn pid(&self) -> u32 {
         self.pid
     }