diff --git a/src/search/negamax.rs b/src/search/negamax.rs
index 405d1ec..db6f487 100644
--- a/src/search/negamax.rs
+++ b/src/search/negamax.rs
@@ -25,7 +25,7 @@ pub fn negamax(
     nodes: &mut u64,
     do_nmp: bool,
 ) -> Result<i16> {
-    if *nodes & 1024 == 0 && time.exceed_hard_limit() {
+    if *nodes & 1023 == 0 && time.exceed_hard_limit() {
         bail!("Hard limit exceeded in negamax");
     }
 
diff --git a/src/search/quiescence.rs b/src/search/quiescence.rs
index e53b665..5212ba6 100644
--- a/src/search/quiescence.rs
+++ b/src/search/quiescence.rs
@@ -15,7 +15,7 @@ pub fn quiescence(
     time: &TimeInfo,
     nodes: &mut u64,
 ) -> Result<i16> {
-    if *nodes & 1024 == 0 && time.exceed_hard_limit() {
+    if *nodes & 1023 == 0 && time.exceed_hard_limit() {
         bail!("Hard limit exceeded in quiescence");
     }