diff --git a/kernel/src/process/posix_thread/mod.rs b/kernel/src/process/posix_thread/mod.rs
index 65f8573a8..186a4ada8 100644
--- a/kernel/src/process/posix_thread/mod.rs
+++ b/kernel/src/process/posix_thread/mod.rs
@@ -299,7 +299,7 @@ impl PosixThread {
     }
 }
 
-static POSIX_TID_ALLOCATOR: AtomicU32 = AtomicU32::new(0);
+static POSIX_TID_ALLOCATOR: AtomicU32 = AtomicU32::new(1);
 
 /// Allocates a new tid for the new posix thread
 pub fn allocate_posix_tid() -> Tid {