diff --git a/src/usr/local/bin/verapdf_validation_wrapper.sh b/src/usr/local/bin/verapdf_validation_wrapper.sh
index b1518fa606f8688a6cfb6a349b9df3fc19c6ffd0..44e2212295b8a98debd05bfefd477f3ff8d79c4c 100755
--- a/src/usr/local/bin/verapdf_validation_wrapper.sh
+++ b/src/usr/local/bin/verapdf_validation_wrapper.sh
@@ -17,13 +17,13 @@ if ! [[ -f "${FILE}" ]]; then
     exit 1;
 fi
 
-IS_VALID=1;
+RESULT=1;
 TOOL_OUTPUT="";
 for FLAVOUR in "2u" "2a" "2b" "1a" "1b" "ua1"; do
     TMP=$(/usr/local/bin/verapdf --nonpdfext -f "${FLAVOUR}" -v "${FILE}")
-    IS_VALID=$?;
+    RESULT=$?;
     TOOL_OUTPUT+="\n${TMP}"
-    if [[ "${IS_VALID}" -eq 0 ]]; then
+    if [[ "${RESULT}" -eq 0 ]]; then
         break
     fi
 done
@@ -33,4 +33,4 @@ echo -e "${TOOL_OUTPUT}"
 # exit code
 #    0 -> valid pdf/a file and allowed pdf/a flavour
 # != 0 -> invalid pdf/a file or disallowed pdf/a flavour
-exit "${IS_VALID}"
+exit "${RESULT}"