diff --git a/Cargo.lock b/Cargo.lock
index 460ff88..f5dd1ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -923,7 +923,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "scavenger"
-version = "1.6.2"
+version = "1.6.4"
 dependencies = [
  "aligned_alloc 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.22 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 7a73dcb..8799314 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "scavenger"
-version = "1.6.2"
+version = "1.6.4"
 license = "GPL-3.0"
 authors = ["PoC Consortium <bots@cryptoguru.org>"]
 description = """
diff --git a/src/ocl.rs b/src/ocl.rs
index 3a3c72a..d0f14ac 100644
--- a/src/ocl.rs
+++ b/src/ocl.rs
@@ -356,7 +356,7 @@ pub fn find_best_deadline_gpu(
     }
 
     core::set_kernel_arg(&gpu_context.kernel2, 0, ArgVal::mem(&buffer.deadlines_gpu)).unwrap();
-    core::set_kernel_arg(&gpu_context.kernel2, 1, ArgVal::primitive(&nonce_count)).unwrap();
+    core::set_kernel_arg(&gpu_context.kernel2, 1, ArgVal::primitive(&(nonce_count as u64))).unwrap();
     core::set_kernel_arg(
         &gpu_context.kernel2,
         2,