diff --git a/spec/spec.js b/spec/spec.js
index 34107cb..2f01149 100644
--- a/spec/spec.js
+++ b/spec/spec.js
@@ -59,6 +59,8 @@ describe("Pinyinify", () => {
         // 长
         expect("她长着一张圆脸和一双明亮的眼睛。").becomes("tā zhǎng zhe yī zhāng yuán liǎn hé yī shuāng míng​liàng de yǎn​jing.");
         expect("不是他干的，警长。").becomes("bù​shì tā gàn de, jǐng zhǎng.");
+        expect("你的头发太长了。").becomes("nǐ de tóu​fa tài cháng le.");
+        expect("我后背上长了个东西。").becomes("wǒ hòu bèi shàng zhǎng le gè dōng​xi.");
         // 系
         expect("这女孩要我给她把衣服从后面系上。").becomes("zhè nǚ​hái yào wǒ gěi tā bǎ yī​fu cóng hòu​miàn jì shàng.");
         expect("一个人的后面有一个系着领带的男人走在道路上").becomes("yī gè rén de hòu​miàn yǒu yī gè jì zhe lǐng​dài de nán​rén zǒu zài dào​lù shàng");
diff --git a/src/pinyinify.js b/src/pinyinify.js
index 469f70e..e8198b8 100644
--- a/src/pinyinify.js
+++ b/src/pinyinify.js
@@ -65,10 +65,14 @@ function decideAmbiguousChar(char, cuts, cutIndex) {
         case "長":
             prevTags = tag(previousText.join(""));
             nextTags = tag(afterText.join(""));
-            if (nextTags && nextTags.length && nextTags[0].tag === "uz")
+            let nextTag = nextTags && nextTags.length && nextTags[0].tag;
+            if (nextTag === "uz")
                 return "zhǎng";
             let prevTag = prevTags && prevTags.length && prevTags[prevTags.length - 1].tag;
             if (prevTag === "n") return "zhǎng";
+            if (prevTag !== "d" && nextTag === "ul") {
+                return "zhǎng";
+            }
             // zhǎng has higher frequency due to compond words, 
             // but cháng is more common as an individual character.
             return "cháng";