diff --git a/backend/genesys.cc b/backend/genesys.cc
index 8a42c071d..fe98cd548 100644
--- a/backend/genesys.cc
+++ b/backend/genesys.cc
@@ -4662,7 +4662,7 @@ probe_genesys_devices (void)
    of Genesys_Calibration_Cache as is.
 */
 static const char* CALIBRATION_IDENT = "sane_genesys";
-static const int CALIBRATION_VERSION = 11;
+static const int CALIBRATION_VERSION = 12;
 
 bool read_calibration(std::istream& str, Genesys_Device::Calibration& calibration,
                       const std::string& path)