diff --git a/build b/build
index 32b04aa..d7d86a3 100755
--- a/build
+++ b/build
@@ -18,12 +18,10 @@ done
 shift $((OPTIND-1))
 
 # Extract current version from Cargo.toml & get current branch
-patch_version="$(grep -Po '(?<=version = ").*(?=")' Cargo.toml | head -n1)"
-major_version="$(echo "$patch_version" | 
-    sed -E 's/([0-9]+)\.([0-9]+)\.([0-9]+)/\1/')"
-minor_version="$(echo "$patch_version" |
-    sed -E 's/([0-9]+).([0-9]+).([0-9]+)/\1.\2/')"
-branch="$(git branch --show-current)"
+patch_version=`grep -Po '(?<=version = ").*(?=")' Cargo.toml | head -n1`
+major_version=`echo "$patch_version" | sed -E 's/([0-9]+)\.([0-9]+)\.([0-9]+)/\1/'`
+minor_version=`echo "$patch_version" | sed -E 's/([0-9]+).([0-9]+).([0-9]+)/\1.\2/'`
+branch=`git rev-parse --abbrev-ref HEAD`
 
 if [[ "$branch" = "master" ]]; then
     tags=("$patch_version" "$minor_version" "$major_version" "latest")