diff --git a/apps/aqhome-tool/data/setdata.c b/apps/aqhome-tool/data/setdata.c
index 5445a40..8116dcc 100644
--- a/apps/aqhome-tool/data/setdata.c
+++ b/apps/aqhome-tool/data/setdata.c
@@ -235,7 +235,7 @@ int _read8BitValues(const GWEN_STRINGLIST *sl, double *pDouble)
 	return rv;
       }
       result<<=8;
-      result=(((uint32_t) v) & 0xff);
+      result+=(((uint32_t) v) & 0xff);
     }
     se=GWEN_StringListEntry_Next(se);
   }