diff --git a/src/render/draw_line.js b/src/render/draw_line.js
index 524afabc7aa..7a24132b6ef 100644
--- a/src/render/draw_line.js
+++ b/src/render/draw_line.js
@@ -16,7 +16,7 @@ import type LineStyleLayer from '../style/style_layer/line_style_layer';
 import type LineBucket from '../data/bucket/line_bucket';
 import type {OverscaledTileID} from '../source/tile_id';
 import {clamp, nextPowerOfTwo} from '../util/util';
-import {renderColorRamp, type ColorRampParams} from '../util/color_ramp';
+import {renderColorRamp} from '../util/color_ramp';
 import EXTENT from '../data/extent';
 
 export default function drawLine(painter: Painter, sourceCache: SourceCache, layer: LineStyleLayer, coords: Array<OverscaledTileID>) {
@@ -82,7 +82,6 @@ export default function drawLine(painter: Painter, sourceCache: SourceCache, lay
         } else if (gradient) {
             let gradientTexture = bucket.gradientTexture;
             if (!gradientTexture || layer.gradientTextureInvalidated) {
-                const sourceMaxZoom = sourceCache.getSource().maxzoom;
                 const lineLength = bucket.maxLineLength / EXTENT;
                 // Logical pixel tile size is 512px, and 1024px right before current zoom + 1
                 const maxTilePixelSize = 1024;
diff --git a/src/util/color_ramp.js b/src/util/color_ramp.js
index fd68e5fbae2..0ea20617284 100644
--- a/src/util/color_ramp.js
+++ b/src/util/color_ramp.js
@@ -24,7 +24,7 @@ export function renderColorRamp(params: ColorRampParams): RGBAImage {
     const evaluationGlobals = {};
     const width = params.resolution || 256;
     const height = params.clips ? params.clips.length : 1;
-    const image = params.image || new RGBAImage({width: width, height: height});
+    const image = params.image || new RGBAImage({width, height});
 
     assert(isPowerOfTwo(width));
 
@@ -37,7 +37,7 @@ export function renderColorRamp(params: ColorRampParams): RGBAImage {
         image.data[stride + index + 1] = Math.floor(pxColor.g * 255 / pxColor.a);
         image.data[stride + index + 2] = Math.floor(pxColor.b * 255 / pxColor.a);
         image.data[stride + index + 3] = Math.floor(pxColor.a * 255);
-    }
+    };
 
     if (!params.clips) {
         for (let i = 0, j = 0; i < width; i++, j += 4) {
@@ -60,4 +60,4 @@ export function renderColorRamp(params: ColorRampParams): RGBAImage {
     }
 
     return image;
-}
\ No newline at end of file
+}
diff --git a/test/unit/util/color_ramp.test.js b/test/unit/util/color_ramp.test.js
index d048d27b6e1..b55e26e629f 100644
--- a/test/unit/util/color_ramp.test.js
+++ b/test/unit/util/color_ramp.test.js
@@ -34,7 +34,7 @@ test('renderColorRamp linear', (t) => {
         1, 'red'
     ], spec, {handleErrors: false}).value;
 
-    const ramp = renderColorRamp({ expression, evaluationKey: 'lineProgress' });
+    const ramp = renderColorRamp({expression, evaluationKey: 'lineProgress'});
 
     t.equal(ramp.width, 256);
     t.equal(ramp.height, 1);
@@ -61,7 +61,7 @@ test('renderColorRamp step', (t) => {
         1, 'black'
     ], spec, {handleErrors: false}).value;
 
-    const ramp = renderColorRamp({ expression, evaluationKey: 'lineProgress', resolution: 512 });
+    const ramp = renderColorRamp({expression, evaluationKey: 'lineProgress', resolution: 512});
 
     t.equal(ramp.width, 512);
     t.equal(ramp.height, 1);
@@ -89,12 +89,12 @@ test('renderColorRamp usePlacement', (t) => {
         1, 'white'
     ], spec, {handleErrors: false}).value;
 
-    let ramp = renderColorRamp({ expression, evaluationKey: 'lineProgress', resolution: 512 });
+    const ramp = renderColorRamp({expression, evaluationKey: 'lineProgress', resolution: 512});
 
     t.equal(ramp.width, 512);
     t.equal(ramp.height, 1);
 
-    renderColorRamp({ expression, evaluationKey: 'lineProgress', resolution: 512, image: ramp });
+    renderColorRamp({expression, evaluationKey: 'lineProgress', resolution: 512, image: ramp});
 
     t.equal(pixelAt(ramp, 0)[3], 127, 'pixel at 0.0 matches input alpha');
     t.ok(nearlyEquals(pixelAt(ramp, 50), [255, 0, 0, 127]), 'pixel < 0.1 matches input');