diff --git a/man3/pthread_mutexattr_setrobust.3 b/man3/pthread_mutexattr_setrobust.3
index e9e8e76..66b4bed 100644
--- a/man3/pthread_mutexattr_setrobust.3
+++ b/man3/pthread_mutexattr_setrobust.3

@@ -86,7 +86,7 @@ on the mutex will block indefinitely.
 .TP
 .B PTHREAD_MUTEX_ROBUST
 If a mutex is initialized with the
-.BR PTHREAD_MUTEX_ROBUST ,
+.BR PTHREAD_MUTEX_ROBUST
 attribute and its owner dies without unlocking it,
 any future attempts to call
 .BR pthread_mutex_lock (3)

@@ -255,22 +255,21 @@ main(int argc, char *argv[])
     s = pthread_mutex_lock(&mtx);
     if (s == EOWNERDEAD) {
         printf("[main thread] pthread_mutex_lock() returned EOWNERDEAD\\n");
-	printf("[main thread] Now make the mutex consistent\\n");
+        printf("[main thread] Now make the mutex consistent\\n");
         s = pthread_mutex_consistent(&mtx);
         if (s != 0)
-	    handle_error_en(s, "pthread_mutex_consistent");
-	printf("[main thread] Mutex is now consistent; unlocking\\n");
+            handle_error_en(s, "pthread_mutex_consistent");
+        printf("[main thread] Mutex is now consistent; unlocking\\n");
         s = pthread_mutex_unlock(&mtx);
         if (s != 0)
-	    handle_error_en(s, "pthread_mutex_unlock");
-
+            handle_error_en(s, "pthread_mutex_unlock");
         exit(EXIT_SUCCESS);
     } else if (s == 0) {
-	printf("[main thread] pthread_mutex_lock() unexpectedly succeeded\\n");
-	exit(EXIT_FAILURE);
+        printf("[main thread] pthread_mutex_lock() unexpectedly succeeded\\n");
+        exit(EXIT_FAILURE);
     } else {
-	printf("[main thread] pthread_mutex_lock() unexpectedly failed\\n");
-	handle_error_en(s, "pthread_mutex_lock");
+        printf("[main thread] pthread_mutex_lock() unexpectedly failed\\n");
+        handle_error_en(s, "pthread_mutex_lock");
     }
 }