diff --git a/fhem/FHEM/15_CUL_EM.pm b/fhem/FHEM/15_CUL_EM.pm
index 75dea8290..d793f33cc 100755
--- a/fhem/FHEM/15_CUL_EM.pm
+++ b/fhem/FHEM/15_CUL_EM.pm
@@ -136,8 +136,9 @@ CUL_EM_Parse($$)
     }
 
     # correct counter wraparound
-    if($total_cnt< $total_cnt_last) {
-      $basis_cnt += 65536;
+    if($total_cnt < $total_cnt_last) {
+      # check: real wraparound or reset only
+      $basis_cnt += ($total_cnt_last > 65000 ? 65536 : $total_cnt_last);
       $readings{basis} = $basis_cnt;
     }