diff --git a/APRSFixedIdFrameProvider.cpp b/APRSFixedIdFrameProvider.cpp
index 80079fb..c75cbe9 100644
--- a/APRSFixedIdFrameProvider.cpp
+++ b/APRSFixedIdFrameProvider.cpp
@@ -127,7 +127,7 @@ bool CAPRSFixedIdFrameProvider::buildAPRSFramesInt(const std::string& gateway, c
         frames.push_back(output);
     }
 
-    setTimeout(20U * 60);//20 minutes, plenty enough for fixed
+    setTimeout(20U * 60U);//20 minutes, plenty enough for fixed
 
     return true;
 }
\ No newline at end of file