diff --git a/smocore/include/stimBuffApis/stimBuffApiManager.h b/smocore/include/stimBuffApis/stimBuffApiManager.h
index 326019d..61f45e7 100644
--- a/smocore/include/stimBuffApis/stimBuffApiManager.h
+++ b/smocore/include/stimBuffApis/stimBuffApiManager.h
@@ -51,9 +51,9 @@ public:
 	void unloadAllStimBuffApiLibs(void);
 
 	body::BodyViralPostingInvoker<void> initializeStimBuffApiLibCReq(
-		StimBuffApiLib &lib, bool acquireSbamLock);
+		StimBuffApiLib &lib, bool acquireSbamLock=true);
 	body::BodyViralPostingInvoker<void> finalizeStimBuffApiLibCReq(
-		StimBuffApiLib &lib, bool acquireSbamLock);
+		StimBuffApiLib &lib, bool acquireSbamLock=true);
 
 	body::BodyViralPostingInvoker<void> initializeAllStimBuffApiLibsCReq();
 	body::BodyViralPostingInvoker<void> finalizeAllStimBuffApiLibsCReq();