diff --git a/examples/rootfs b/examples/rootfs
index 7a610d66..3f6aa4bc 160000
--- a/examples/rootfs
+++ b/examples/rootfs
@@ -1 +1 @@
-Subproject commit 7a610d66184be24e4b301c7552565d3229671ca8
+Subproject commit 3f6aa4bc9dd77839998af6837e4faf6dadf66fe0
diff --git a/examples/src/linux/picohttpd/httpd.c b/examples/src/linux/picohttpd/httpd.c
index 746d6ea7..0630fd1c 100644
--- a/examples/src/linux/picohttpd/httpd.c
+++ b/examples/src/linux/picohttpd/httpd.c
@@ -14,6 +14,14 @@
 
 #define CONNMAX 1000
 
+char    *method,    // "GET" or "POST"
+        *uri,       // "/index.html" things before '?'
+        *qs,        // "a=1&b=2"     things after  '?'
+        *prot;      // "HTTP/1.1"
+
+char    *payload;     // for POST
+int      payload_size;
+
 static int listenfd, clients[CONNMAX];
 static void error(char *);
 static void startServer(const char *);
diff --git a/examples/src/linux/picohttpd/httpd.h b/examples/src/linux/picohttpd/httpd.h
index a0969a17..6cd7f517 100644
--- a/examples/src/linux/picohttpd/httpd.h
+++ b/examples/src/linux/picohttpd/httpd.h
@@ -10,13 +10,13 @@ void serve_forever(const char *PORT);
 
 // Client request
 
-char    *method,    // "GET" or "POST"
+extern char    *method,    // "GET" or "POST"
         *uri,       // "/index.html" things before '?'
         *qs,        // "a=1&b=2"     things after  '?'
         *prot;      // "HTTP/1.1"
 
-char    *payload;     // for POST
-int      payload_size;
+extern char    *payload;     // for POST
+extern int      payload_size;
 
 char *request_header(const char* name);
 
diff --git a/examples/src/linux/picohttpd/main.c b/examples/src/linux/picohttpd/main.c
index 86bc9d95..0a0fb252 100644
--- a/examples/src/linux/picohttpd/main.c
+++ b/examples/src/linux/picohttpd/main.c
@@ -1,6 +1,6 @@
 #include "httpd.h"
 
-int main(int c, char** v)
+int main(int c, char** v, int argc, const char **argv)
 {
     serve_forever("12913");
     return 0;
diff --git a/tests/test_elf_multithread.py b/tests/test_elf_multithread.py
index a421e803..5b2a4037 100644
--- a/tests/test_elf_multithread.py
+++ b/tests/test_elf_multithread.py
@@ -296,6 +296,20 @@ class ELFTest(unittest.TestCase):
         f = os.popen("curl http://127.0.0.1:12913")
         self.assertEqual("httpd_test_successful", f.read())
 
+    def test_http_elf_linux_arm(self):
+        def picohttpd():
+            ql = Qiling(["../examples/rootfs/arm_linux/bin/picohttpd"], "../examples/rootfs/arm_linux", multithread=True, verbose=QL_VERBOSE.DEBUG)    
+            ql.run()
+
+
+        picohttpd_therad = threading.Thread(target=picohttpd, daemon=True)
+        picohttpd_therad.start()
+
+        time.sleep(1)
+
+        f = os.popen("curl http://127.0.0.1:12913")
+        self.assertEqual("httpd_test_successful", f.read())
+
 
 if __name__ == "__main__":
     unittest.main()