diff --git a/lec14/report14.md b/lec14/report14.md
index cc6b80a13e85b5e13c47a9cd64d38a0e01902aef..d172004eb15dde2cab739279fd9bb282a92b21dd 100644
--- a/lec14/report14.md
+++ b/lec14/report14.md
@@ -30,7 +30,7 @@
 ### How to control static and global variable?
 * static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZERS;
 
-    pthread_mutex_lock(&mutex);
-    count++;
-    pthread_mutex_unlock(&mutex);
+    pthread_mutex_lock(&mutex); <br>
+    count++; <br>
+    pthread_mutex_unlock(&mutex); <br>