diff --git a/op25Handler.py b/op25Handler.py
index ebd9a89..47f8ef8 100644
--- a/op25Handler.py
+++ b/op25Handler.py
@@ -26,8 +26,8 @@ class OP25Handler(threading.Thread):
         print(os.getcwd())
 
         self.OP25Proc = subprocess.Popen(["python3", f"{self.OP25Dir}/rx.py", "--args", "'rtl'", "-N", "'LNA:49'", "-s",
-                                          "200000", "-o","25600", "-U", "-f", f"{self.Frequency}e6", "-X", "-2",
-                                          "-l" "http:0.0.0.0:8080"], shell=True)
+                                          "200000", "-o", "25600", "-U", "-f", f"{self.Frequency}e6", "-X", "-2",
+                                          "-l" "http:0.0.0.0:8080"])
 
     def close_op25(self):
         print(f"Closing OP25")