diff --git a/slsDetectorSoftware/commonFiles/error_defs.h b/slsDetectorSoftware/commonFiles/error_defs.h
index 7bfe093ed..89798faef 100644
--- a/slsDetectorSoftware/commonFiles/error_defs.h
+++ b/slsDetectorSoftware/commonFiles/error_defs.h
@@ -60,7 +60,7 @@ using namespace std;
 #define COULD_NOT_SET_RATE_CORRECTION		0x0000000000200000ULL
 #define DETECTOR_NETWORK_PARAMETER			0x0000000000400000ULL
 #define RATE_CORRECTION_NOT_32BIT			0x0000000000800000ULL
-#define RATE_CORRECTION_NO_TAU_PROVIDED		0x0000000000010000ULL
+#define RATE_CORRECTION_NO_TAU_PROVIDED		0x0000000001000000ULL
 
 //											0x00000000FFFFFFFFULL
 /** @short class returning all error messages for error mask */