diff --git a/ChangeLog.txt b/ChangeLog.txt
index d9a42fe73..abeab4a5c 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -511,4 +511,6 @@
 	* apps/builtin/exec_builtin.c:  Now uses task_spawn() to start
 	  builtin applications.
 	* Type of argv has changed from const char ** to char * const *
+	* apps/nshlib/nsh_parse.c:  Fix memory lead: Need to detach after
+	  creating a pthread.
 
diff --git a/nshlib/nsh_parse.c b/nshlib/nsh_parse.c
index 26b41e89b..4ee86b4cc 100644
--- a/nshlib/nsh_parse.c
+++ b/nshlib/nsh_parse.c
@@ -1426,8 +1426,10 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline)
 
       /* Free the redirected output file path */
 
-      nsh_freefullpath(redirfile);
-      redirfile = NULL;
+      if (redirfile)
+        {
+          nsh_freefullpath(redirfile);
+        }
 
       /* Save the result:  success if 0; failure if 1 */
 
@@ -1467,8 +1469,10 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline)
 
       /* Free the redirected output file path */
 
-      nsh_freefullpath(redirfile);
-      redirfile = NULL;
+      if (redirfile)
+        {
+          nsh_freefullpath(redirfile);
+        }
 
       /* Save the result:  success if 0; failure if 1 */
 
@@ -1596,6 +1600,12 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline)
           goto errout;
         }
 
+      /* Detach from the pthread since we are not going to join with it.
+       * Otherwise, we would have a memory leak.
+       */
+
+      (void)pthread_detach(thread);
+
       nsh_output(vtbl, "%s [%d:%d]\n", cmd, thread, param.sched_priority);
     }
   else