diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 9a74f60c9185..d7ceb385ae0b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1539,8 +1539,8 @@ static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
 
 			/* if truncated, FCS/ICV is (partially) gone */
 			if (truncated >= icvlen) {
-				icvlen = 0;
 				truncated -= icvlen;
+				icvlen = 0;
 			} else {
 				icvlen -= truncated;
 				truncated = 0;