diff --git a/liquidprompt b/liquidprompt
index cfa67fb..9d53fec 100755
--- a/liquidprompt
+++ b/liquidprompt
@@ -104,7 +104,11 @@ fi
 _lp_bool()
 {
     local res=${2:-$?}
-    [[ $res = 0 ]] && eval $1=true || eval $1=false
+    if [[ $res = 0 ]]; then
+        eval $1=true
+    else
+        eval $1=false
+    fi
     return $res
 }