diff --git a/src/sc2api/sc2_coordinator.cc b/src/sc2api/sc2_coordinator.cc
index cbe970e4..3ce44635 100644
--- a/src/sc2api/sc2_coordinator.cc
+++ b/src/sc2api/sc2_coordinator.cc
@@ -197,7 +197,9 @@ CoordinatorImp::CoordinatorImp() :
 
 CoordinatorImp::~CoordinatorImp() {
     for (auto& p : process_settings_.process_info) {
-        TerminateProcess(p.process_id);
+        if (p.process_id > 0) {
+            TerminateProcess(p.process_id);
+        }
     }
 }