diff --git a/src/runtime2/tests/mod.rs b/src/runtime2/tests/mod.rs
index 3de2cced47acc7d12adcecc814e2290966161505..1f0a8423beda972cb7afcddabf978a3c57435192 100644
--- a/src/runtime2/tests/mod.rs
+++ b/src/runtime2/tests/mod.rs
@@ -16,7 +16,7 @@ use crate::runtime2::native::{ApplicationSyncAction};
 // pub(crate) const NUM_LOOPS: u32 = 10;       // number of loops within a single test (not used by all tests)
 
 pub(crate) const NUM_THREADS: u32 = 6;
-pub(crate) const NUM_INSTANCES: u32 = 1;
+pub(crate) const NUM_INSTANCES: u32 = 2;
 pub(crate) const NUM_LOOPS: u32 = 1;