diff --git a/server/gen_build_info.sh b/server/gen_build_info.sh
index a2b3cc40..43120978 100755
--- a/server/gen_build_info.sh
+++ b/server/gen_build_info.sh
@@ -36,7 +36,7 @@ sh=`git rev-list --pretty=format:%h HEAD --max-count=1 | sed '1s/commit /full_re
 eval "$sh"  # Sets the full_rev & short_rev variables.
 
 # get git version tag
-tag=$(git show-ref --tags | egrep "refs/tags/$version$" | cut -d " " -f1)
+tag=$(git show-ref --tags | grep -E "refs/tags/$version$" | cut -d " " -f1)
 if [[ $tag = $full_rev ]]; then
     isRelease=true
 fi
@@ -133,4 +133,4 @@ if [[ "$output" == "base64" ]]; then
   echo $json | base64 | tr -d '\n'
 else
   echo $json
-fi
\ No newline at end of file
+fi