diff --git a/src/FSharpLint.Core/Framework/Rules.fs b/src/FSharpLint.Core/Framework/Rules.fs
index d53629800..74dfb5f70 100644
--- a/src/FSharpLint.Core/Framework/Rules.fs
+++ b/src/FSharpLint.Core/Framework/Rules.fs
@@ -97,12 +97,12 @@ let toWarning (identifier:string) (ruleName:string) (filePath:string) (lines:str
 
 let runAstNodeRule (rule:RuleMetadata<AstNodeRuleConfig>) (config:AstNodeRuleParams) =
     rule.RuleConfig.Runner config
-    |> Array.map (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
+    |> Array.mapIfNotEmpty (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
 
 let runLineRuleWithContext (rule:RuleMetadata<LineRuleConfigWithContext<'Context>>) (context:'Context) (config:LineRuleParams) =
     rule.RuleConfig.Runner context config
-    |> Array.map (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
+    |> Array.mapIfNotEmpty (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
 
 let runLineRule (rule:RuleMetadata<LineRuleConfig>) (config:LineRuleParams) =
     rule.RuleConfig.Runner config
-    |> Array.map (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
+    |> Array.mapIfNotEmpty (toWarning rule.Identifier rule.Name config.FilePath config.Lines)
diff --git a/src/FSharpLint.Core/Framework/Utilities.fs b/src/FSharpLint.Core/Framework/Utilities.fs
index 8973b8ac1..f51f0b3c0 100644
--- a/src/FSharpLint.Core/Framework/Utilities.fs
+++ b/src/FSharpLint.Core/Framework/Utilities.fs
@@ -23,6 +23,14 @@ module Dictionary =
 
         dict.Add(key, value)
 
+module Array =
+
+    let inline mapIfNotEmpty ([<InlineIfLambda>] mapping: 'Source -> 'Dest) (array: 'Source array) =
+        if Array.isEmpty array
+            then Array.empty
+        else
+            Array.map mapping array
+
 module ExpressionUtilities =
 
     open System