diff --git a/.eslintrc b/.eslintrc
index 7ccca7425f0..78d24476c13 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -30,7 +30,7 @@
         "@typescript-eslint/no-angle-bracket-type-assertion": "off",
         "@typescript-eslint/no-empty-interface": "off",
         "@typescript-eslint/no-explicit-any": "off",
-        "@typescript-eslint/no-inferrable-types": "off",
+        "@typescript-eslint/no-inferrable-types": "error",
         "@typescript-eslint/no-misused-new": "error",
         "@typescript-eslint/no-namespace": "off",
         "@typescript-eslint/no-object-literal-type-assertion": "off",
diff --git a/scripts/errorCheck.ts b/scripts/errorCheck.ts
index 92e738c00ba..4c1dbf7af35 100644
--- a/scripts/errorCheck.ts
+++ b/scripts/errorCheck.ts
@@ -59,7 +59,7 @@ fs.readFile('src/compiler/diagnosticInformationMap.generated.ts', 'utf-8', (err,
         errorNames.push(errMatch[1]);
     }
 
-    let allSrc: string = '';
+    let allSrc = '';
     glob('./src/**/*.ts', {}, (err, files) => {
         console.log('Reading ' + files.length + ' source files');
         for (let file of files) {
diff --git a/scripts/word2md.ts b/scripts/word2md.ts
index 8d651ecfcc7..bba748084c1 100644
--- a/scripts/word2md.ts
+++ b/scripts/word2md.ts
@@ -177,7 +177,7 @@ interface FindReplaceOptions {
 
 function convertDocumentToMarkdown(doc: Word.Document): string {
 
-    var result: string = "";
+    var result = "";
     var lastStyle: string;
     var lastInTable: boolean;
     var tableColumnCount: number;