diff --git a/libc/bionic/pthread_detach.cpp b/libc/bionic/pthread_detach.cpp
index 0712d0d67..7ae5eb4c6 100644
--- a/libc/bionic/pthread_detach.cpp
+++ b/libc/bionic/pthread_detach.cpp
@@ -44,9 +44,9 @@ int pthread_detach(pthread_t t) {
     }
     switch (old_state) {
       case THREAD_NOT_JOINED: return 0;
-      case THREAD_JOINED:     return 0; // Already being joined; silently do nothing, like glibc.
+      case THREAD_JOINED:     return 0;  // Already being joined; silently do nothing, like glibc.
       case THREAD_DETACHED:   return THREAD_DETACHED;
-      case THREAD_EXITED_NOT_JOINED:  // Call pthread_join out of scope of pthread_accessor.
+      case THREAD_EXITED_NOT_JOINED: break;  // Call pthread_join out of scope of pthread_accessor.
     }
   }
 
diff --git a/libc/bionic/pthread_mutex.cpp b/libc/bionic/pthread_mutex.cpp
index f1107823e..24066ae02 100644
--- a/libc/bionic/pthread_mutex.cpp
+++ b/libc/bionic/pthread_mutex.cpp
@@ -305,7 +305,7 @@ static inline int __pthread_normal_mutex_trylock(atomic_int* mutex_value_ptr, in
  */
 static inline int __pthread_normal_mutex_lock(atomic_int* mutex_value_ptr, int shared,
                                               const timespec* abs_timeout_or_null, clockid_t clock) {
-    if (__predict_true(__normal_mutex_trylock(mutex_value_ptr, shared) == 0)) {
+    if (__predict_true(__pthread_normal_mutex_trylock(mutex_value_ptr, shared) == 0)) {
         return 0;
     }