diff --git a/src_main/system/pisystemtests.cpp b/src_main/system/pisystemtests.cpp
index 102e3ea9..5913d4ab 100755
--- a/src_main/system/pisystemtests.cpp
+++ b/src_main/system/pisystemtests.cpp
@@ -39,9 +39,9 @@ PISystemTests::PISystemTestReader::PISystemTestReader() {
 #if !defined(WINDOWS) && !defined(FREERTOS)
 	PIConfig conf(PIStringAscii("/etc/pip.conf"), PIIODevice::ReadOnly);
 	//conf.setReopenEnabled(false);
-	time_resolution_ns = conf.getValue(PIStringAscii("time_resolution_ns"), 1);
-	time_elapsed_ns = conf.getValue(PIStringAscii("time_elapsed_ns"), 0);
-	usleep_offset_us = conf.getValue(PIStringAscii("usleep_offset_us"), 60);
+	time_resolution_ns = conf.getValue(PIStringAscii("time_resolution_ns"), 1).toLong();
+	time_elapsed_ns = conf.getValue(PIStringAscii("time_elapsed_ns"), 0).toLong();
+	usleep_offset_us = conf.getValue(PIStringAscii("usleep_offset_us"), 60).toLong();
 #endif
 }