diff --git a/.eslintrc.js b/.eslintrc.js
index 01dc09d52..e672beadd 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -24,6 +24,7 @@ module.exports = {
         "simple-import-sort/exports": "warn",
         "prefer-const": "warn",
         "no-nested-ternary": "warn",
+        "curly": "error",
         "@typescript-eslint/consistent-type-imports": "error",
     },
     overrides: [
diff --git a/ts/components/Label.svelte b/ts/components/Label.svelte
index 2db73b3b5..0c2ba3f0a 100644
--- a/ts/components/Label.svelte
+++ b/ts/components/Label.svelte
@@ -24,7 +24,9 @@
     bind:this={spanRef}
     for={forId}
     on:click={(e) => {
-        if (preventMouseClick) e.preventDefault();
+        if (preventMouseClick) {
+            e.preventDefault();
+        }
     }}
 >
     <slot />
diff --git a/ts/components/SpinBox.svelte b/ts/components/SpinBox.svelte
index 9b951ce1a..a9eb00919 100644
--- a/ts/components/SpinBox.svelte
+++ b/ts/components/SpinBox.svelte
@@ -35,7 +35,9 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     }
 
     function decimalPlaces(value: number) {
-        if (Math.floor(value) === value) return 0;
+        if (Math.floor(value) === value) {
+            return 0;
+        }
         return value.toString().split(".")[1].length || 0;
     }
 
diff --git a/ts/image-occlusion/tools/tool-ellipse.ts b/ts/image-occlusion/tools/tool-ellipse.ts
index a06ccbfc7..b784a6999 100644
--- a/ts/image-occlusion/tools/tool-ellipse.ts
+++ b/ts/image-occlusion/tools/tool-ellipse.ts
@@ -43,8 +43,9 @@ export const drawEllipse = (canvas: fabric.Canvas): void => {
     });
 
     canvas.on("mouse:move", function(o) {
-        if (!isDown) return;
-
+        if (!isDown) {
+            return;
+        }
         const pointer = canvas.getPointer(o.e);
         let rx = Math.abs(origX - pointer.x) / 2;
         let ry = Math.abs(origY - pointer.y) / 2;
diff --git a/ts/image-occlusion/tools/tool-rect.ts b/ts/image-occlusion/tools/tool-rect.ts
index c1bbb304a..6ad3f2d55 100644
--- a/ts/image-occlusion/tools/tool-rect.ts
+++ b/ts/image-occlusion/tools/tool-rect.ts
@@ -44,7 +44,9 @@ export const drawRectangle = (canvas: fabric.Canvas): void => {
     });
 
     canvas.on("mouse:move", function(o) {
-        if (!isDown) return;
+        if (!isDown) {
+            return;
+        }
         const pointer = canvas.getPointer(o.e);
         let x = pointer.x;
         let y = pointer.y;
diff --git a/ts/image-occlusion/tools/tool-undo-redo.ts b/ts/image-occlusion/tools/tool-undo-redo.ts
index 286d6b4ec..2c176d74f 100644
--- a/ts/image-occlusion/tools/tool-undo-redo.ts
+++ b/ts/image-occlusion/tools/tool-undo-redo.ts
@@ -20,8 +20,12 @@ type UndoState = {
 const shapeType = ["rect", "ellipse", "i-text"];
 
 const validShape = (shape: fabric.Object): boolean => {
-    if (shape.width <= 5 || shape.height <= 5) return false;
-    if (shapeType.indexOf(shape.type) === -1) return false;
+    if (shape.width <= 5 || shape.height <= 5) {
+        return false;
+    }
+    if (shapeType.indexOf(shape.type) === -1) {
+        return false;
+    }
     return true;
 };
 
diff --git a/ts/reviewer/preload.ts b/ts/reviewer/preload.ts
index 72ae1b645..9adb097f5 100644
--- a/ts/reviewer/preload.ts
+++ b/ts/reviewer/preload.ts
@@ -105,7 +105,9 @@ export async function preloadResources(html: string): Promise<void> {
         timeout = 500;
     } else if (images.length) {
         timeout = 200;
-    } else return;
+    } else {
+        return;
+    }
 
     await Promise.race([
         Promise.all([...styleSheets, ...images, ...fonts]),