diff --git a/clientgui/MainDocument.cpp b/clientgui/MainDocument.cpp
index 583856526b..dbab2ff15d 100644
--- a/clientgui/MainDocument.cpp
+++ b/clientgui/MainDocument.cpp
@@ -810,7 +810,7 @@ void CMainDocument::RefreshRPCs() {
 }
 
 
-void CMainDocument::RunPeriodicRPCs(wxLongLong frameRefreshRate) {
+void CMainDocument::RunPeriodicRPCs(int frameRefreshRate) {
     ASYNC_RPC_REQUEST request;
     wxTimeSpan ts;
 
diff --git a/clientgui/MainDocument.h b/clientgui/MainDocument.h
index 7db03b0303..9928c28a5e 100644
--- a/clientgui/MainDocument.h
+++ b/clientgui/MainDocument.h
@@ -162,7 +162,7 @@ public:
     int                         SetNetworkRunMode(int iMode, int iTimeout);
 
     void                        RefreshRPCs();
-    void                        RunPeriodicRPCs(wxLongLong frameRefreshRate);
+    void                        RunPeriodicRPCs(int frameRefreshRate);
     int                         ForceCacheUpdate(bool immediate = true);
     int                         RunBenchmarks();