diff --git a/src/compiler/diagnosticMessages.json b/src/compiler/diagnosticMessages.json
index c3ef03a9f34..0925f299215 100644
--- a/src/compiler/diagnosticMessages.json
+++ b/src/compiler/diagnosticMessages.json
@@ -2296,7 +2296,7 @@
         "category": "Error",
         "code": 5062
     },
-    "Substututions for pattern '{0}' should be an array.": {
+    "Substitutions for pattern '{0}' should be an array.": {
         "category": "Error",
         "code": 5063
     },
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 92e79936a0f..6b2a5c0def4 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2021,7 +2021,7 @@ namespace ts {
                         }
                     }
                     else {
-                        programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Substututions_for_pattern_0_should_be_an_array, key));
+                        programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Substitutions_for_pattern_0_should_be_an_array, key));
                     }
                 }
             }
diff --git a/tests/baselines/reference/pathsValidation1.errors.txt b/tests/baselines/reference/pathsValidation1.errors.txt
index c6193be67ac..a2d7be5f355 100644
--- a/tests/baselines/reference/pathsValidation1.errors.txt
+++ b/tests/baselines/reference/pathsValidation1.errors.txt
@@ -1,6 +1,6 @@
-error TS5063: Substututions for pattern '*' should be an array.
+error TS5063: Substitutions for pattern '*' should be an array.
 
 
-!!! error TS5063: Substututions for pattern '*' should be an array.
+!!! error TS5063: Substitutions for pattern '*' should be an array.
 ==== tests/cases/compiler/a.ts (0 errors) ====
     let x = 1;
\ No newline at end of file