diff --git a/src/renderer/rendererFunc/listPoints.js b/src/renderer/rendererFunc/listPoints.js
index d897c40..ef795d1 100644
--- a/src/renderer/rendererFunc/listPoints.js
+++ b/src/renderer/rendererFunc/listPoints.js
@@ -136,7 +136,7 @@ export default function listPoints(qrcode, params) {
                             key="${id++}"
                             d="${sq25}"
                             stroke="${posColor}"
-                            stroke-width=${(100 / 6) * (1 - (1 - 0.8) * 0.75)}
+                            stroke-width="${(100 / 6) * (1 - (1 - 0.8) * 0.75)}"
                             fill="none"
                             transform="${
                                 'translate(' +
diff --git a/src/renderer/rendererLine/listPoints.js b/src/renderer/rendererLine/listPoints.js
index df266d9..8aa5376 100644
--- a/src/renderer/rendererLine/listPoints.js
+++ b/src/renderer/rendererLine/listPoints.js
@@ -178,9 +178,9 @@ export default function listPoints(qrcode, params) {
                                     opacity="${opacity}"
                                     x1="${x + 0.5}"
                                     y1="${y + 0.5}"
-                                    x2=${x + end - start - 0.5}
+                                    x2="${x + end - start - 0.5}"
                                     y2="${y + 0.5}"
-                                    stroke-width=${size}
+                                    stroke-width="${size}"
                                     stroke="${otherColor}"
                                     stroke-linecap="round"
                                     key="${id++}"