diff --git a/src/main/rust/Cargo.toml b/src/main/rust/Cargo.toml
index d7b4096..cc81dbf 100644
--- a/src/main/rust/Cargo.toml
+++ b/src/main/rust/Cargo.toml
@@ -50,3 +50,8 @@ harness = false
 lto = "fat"
 strip = "symbols"
 panic = "abort"
+
+[profile.flamegraph]
+inherits = "release"
+debug = true
+strip = "none"
\ No newline at end of file
diff --git a/src/main/rust/src/utils/parse.rs b/src/main/rust/src/utils/parse.rs
index 9c1023b..8eb9069 100644
--- a/src/main/rust/src/utils/parse.rs
+++ b/src/main/rust/src/utils/parse.rs
@@ -71,10 +71,10 @@ pub fn temp_simd(bytes: &[u8]) -> isize {
 
 #[inline]
 pub fn hashstr(bytes: &[u8]) -> usize {
-    let mut hash = 0;
+    let mut hash: usize = 0;
     let (chunks, remainder) = bytes.as_chunks::<8>();
     for &chunk in chunks {
-        hash += usize::from_be_bytes(chunk);
+        hash = hash.wrapping_add(usize::from_be_bytes(chunk));
     }
     let mut r = [0_u8; 8];
     r[0] = remainder.len() as u8;