diff --git a/web/ui/module/codemirror-promql/src/grammar/promql.grammar b/web/ui/module/codemirror-promql/src/grammar/promql.grammar
index 1cbbefa02..2814a35c5 100644
--- a/web/ui/module/codemirror-promql/src/grammar/promql.grammar
+++ b/web/ui/module/codemirror-promql/src/grammar/promql.grammar
@@ -121,25 +121,25 @@ FunctionIdentifier {
   AbsentOverTime |
   Absent |
   Abs |
-	Acos |
-	Acosh |
-	Asin |
-	Asinh |
-	Atan |
-	Atanh |
+  Acos |
+  Acosh |
+  Asin |
+  Asinh |
+  Atan |
+  Atanh |
   AvgOverTime |
   Ceil |
   Changes |
   Clamp |
   ClampMax |
   ClampMin |
-	Cos |
-	Cosh |
+  Cos |
+  Cosh |
   CountOverTime |
   DaysInMonth |
   DayOfMonth |
   DayOfWeek |
-	Deg |
+  Deg |
   Delta |
   Deriv |
   Exp |
@@ -160,26 +160,26 @@ FunctionIdentifier {
   MinOverTime |
   Minute |
   Month |
-	Pi |
+  Pi |
   PredictLinear |
   PresentOverTime |
   QuantileOverTime |
-	Rad |
+  Rad |
   Rate |
   Resets |
   Round |
   Scalar |
   Sgn |
-	Sin |
-	Sinh |
+  Sin |
+  Sinh |
   Sort |
   SortDesc |
   Sqrt |
   StddevOverTime |
   StdvarOverTime |
   SumOverTime |
-	Tan |
-	Tanh |
+  Tan |
+  Tanh |
   Timestamp |
   Time |
   Vector |
@@ -358,25 +358,25 @@ NumberLiteral  {
   Abs { condFn<"abs"> }
   Absent { condFn<"absent"> }
   AbsentOverTime { condFn<"absent_over_time"> }
-	Acos { condFn<"acos"> }
-	Acosh { condFn<"acosh"> }
-	Asin { condFn<"asin"> }
-	Asinh { condFn<"asinh">}
-	Atan { condFn<"atan"> }
-	Atanh { condFn<"atanh">}
+  Acos { condFn<"acos"> }
+  Acosh { condFn<"acosh"> }
+  Asin { condFn<"asin"> }
+  Asinh { condFn<"asinh">}
+  Atan { condFn<"atan"> }
+  Atanh { condFn<"atanh">}
   AvgOverTime { condFn<"avg_over_time"> }
   Ceil { condFn<"ceil"> }
   Changes { condFn<"changes"> }
   Clamp { condFn<"clamp"> }
   ClampMax { condFn<"clamp_max"> }
   ClampMin { condFn<"clamp_min"> }
-	Cos { condFn<"cos">}
-	Cosh { condFn<"cosh">}
+  Cos { condFn<"cos">}
+  Cosh { condFn<"cosh">}
   CountOverTime { condFn<"count_over_time"> }
   DaysInMonth { condFn<"days_in_month"> }
   DayOfMonth { condFn<"day_of_month"> }
   DayOfWeek { condFn<"day_of_week"> }
-	Deg { condFn<"deg"> }
+  Deg { condFn<"deg"> }
   Delta { condFn<"delta"> }
   Deriv { condFn<"deriv"> }
   Exp { condFn<"exp"> }
@@ -397,26 +397,26 @@ NumberLiteral  {
   MinOverTime { condFn<"min_over_time"> }
   Minute { condFn<"minute"> }
   Month { condFn<"month"> }
-	Pi { condFn<"pi">}
+  Pi { condFn<"pi">}
   PredictLinear { condFn<"predict_linear"> }
   PresentOverTime { condFn<"present_over_time"> }
   QuantileOverTime { condFn<"quantile_over_time"> }
-	Rad { condFn<"rad"> }
+  Rad { condFn<"rad"> }
   Rate { condFn<"rate"> }
   Resets { condFn<"resets"> }
   Round { condFn<"round"> }
   Scalar { condFn<"scalar"> }
   Sgn { condFn<"sgn"> }
-	Sin { condFn<"sin">}
-	Sinh { condFn<"sinh"> }
+  Sin { condFn<"sin">}
+  Sinh { condFn<"sinh"> }
   Sort { condFn<"sort"> }
   SortDesc { condFn<"sort_desc"> }
   Sqrt { condFn<"sqrt"> }
   StddevOverTime { condFn<"stddev_over_time"> }
   StdvarOverTime { condFn<"stdvar_over_time"> }
   SumOverTime { condFn<"sum_over_time"> }
-	Tan { condFn<"tan"> }
-	Tanh { condFn<"tanh">}
+  Tan { condFn<"tan"> }
+  Tanh { condFn<"tanh">}
   Time { condFn<"time"> }
   Timestamp { condFn<"timestamp"> }
   Vector { condFn<"vector"> }