diff --git a/src/lint/lintFile.spec.ts b/src/lint/lintFile.spec.ts
index 69bbad5..5b9cc39 100644
--- a/src/lint/lintFile.spec.ts
+++ b/src/lint/lintFile.spec.ts
@@ -46,10 +46,10 @@ const expectedDiagnostics = [
     severity: Severity.Error
   },
   {
-    message: 'Line is indented with a tab',
+    message: 'Line contains tab indentation',
     lineNumber: 7,
     startColumnNumber: 1,
-    endColumnNumber: 1,
+    endColumnNumber: 2,
     severity: Severity.Warning
   },
   {
diff --git a/src/lint/lintFolder.spec.ts b/src/lint/lintFolder.spec.ts
index 9c2c2c9..3c28bde 100644
--- a/src/lint/lintFolder.spec.ts
+++ b/src/lint/lintFolder.spec.ts
@@ -53,10 +53,10 @@ const expectedDiagnostics = [
     severity: Severity.Error
   },
   {
-    message: 'Line is indented with a tab',
+    message: 'Line contains tab indentation',
     lineNumber: 7,
     startColumnNumber: 1,
-    endColumnNumber: 1,
+    endColumnNumber: 2,
     severity: Severity.Warning
   },
   {
diff --git a/src/lint/lintProject.spec.ts b/src/lint/lintProject.spec.ts
index 31a3151..a8b79b3 100644
--- a/src/lint/lintProject.spec.ts
+++ b/src/lint/lintProject.spec.ts
@@ -51,10 +51,10 @@ const expectedDiagnostics = [
     severity: Severity.Error
   },
   {
-    message: 'Line is indented with a tab',
+    message: 'Line contains tab indentation',
     lineNumber: 7,
     startColumnNumber: 1,
-    endColumnNumber: 1,
+    endColumnNumber: 2,
     severity: Severity.Warning
   },
   {