diff --git a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer
index 043cdff1e..4ff574d26 100755
Binary files a/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer and b/slsDetectorServers/mythen3DetectorServer/bin/mythen3DetectorServer_developer differ
diff --git a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
index 7643fc0fa..8db552853 100644
--- a/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/mythen3DetectorServer/slsDetectorFunctionList.c
@@ -249,15 +249,15 @@ u_int16_t getHardwareVersionNumber() {
 #ifdef VIRTUAL
     return 0;
 #endif
-    return bus_r(MCB_SERIAL_NO_REG);
+    return ((bus_r(MCB_SERIAL_NO_REG) & MCB_SERIAL_NO_VRSN_MSK) >>
+            MCB_SERIAL_NO_VRSN_OFST);
 }
 
 u_int32_t getDetectorNumber() {
 #ifdef VIRTUAL
     return 0;
 #endif
-    return ((bus_r(MCB_SERIAL_NO_REG) & MCB_SERIAL_NO_VRSN_MSK) >>
-            MCB_SERIAL_NO_VRSN_OFST);
+    return bus_r(MCB_SERIAL_NO_REG);
 }
 
 u_int64_t getDetectorMAC() {
diff --git a/slsSupportLib/include/versionAPI.h b/slsSupportLib/include/versionAPI.h
index f45cf6141..02dc7f6de 100644
--- a/slsSupportLib/include/versionAPI.h
+++ b/slsSupportLib/include/versionAPI.h
@@ -8,5 +8,5 @@
 #define APIJUNGFRAU  0x200810
 #define APIMOENCH    0x200810
 #define APIEIGER 0x200831
-#define APIMYTHEN3 0x200901
 #define APIGOTTHARD2 0x200902
+#define APIMYTHEN3 0x200903