diff --git a/profiling/src/profiling/mod.rs b/profiling/src/profiling/mod.rs
index f214ed25610..36c1ad9afd9 100644
--- a/profiling/src/profiling/mod.rs
+++ b/profiling/src/profiling/mod.rs
@@ -1011,7 +1011,7 @@ impl Profiler {
     fn prepare_sample_message(
         frames: Vec<ZendFrame>,
         samples: SampleValues,
-        #[cfg(php_has_fibers)] mut labels: Vec<Label>,
+        #[cfg(any(php_has_fibers, php_zts))] mut labels: Vec<Label>,
         #[cfg(not(php_has_fibers))] labels: Vec<Label>,
         locals: &RequestLocals,
         timestamp: i64,
@@ -1081,6 +1081,12 @@ impl Profiler {
             }
         }
 
+        #[cfg(php_zts)]
+        labels.push(Label {
+            key: "thread id",
+            value: LabelValue::Num(unsafe { libc::pthread_self() as i64 }, "id".into()),
+        });
+
         let tags = TAGS.with(|cell| Arc::clone(&cell.borrow()));
 
         SampleMessage {