diff --git a/src/runtime2/tests/mod.rs b/src/runtime2/tests/mod.rs
index 46dbf2abfc1db253f4f6414d548bba4bac9dae36..4be969ef20327dcbec9388bcd93cd991d53c5fe4 100644
--- a/src/runtime2/tests/mod.rs
+++ b/src/runtime2/tests/mod.rs
@@ -14,7 +14,7 @@ fn runtime_for(num_threads: u32, pdl: &str) -> Runtime {
 
 #[test]
 fn test_put_and_get() {
-    let rt = runtime_for(4, "
+    let rt = runtime_for(1, "
 primitive putter(out<bool> sender, u32 loops) {
     u32 index = 0;
     while (index < loops) {