diff --git a/ivas_processing_scripts/processing/ivas.py b/ivas_processing_scripts/processing/ivas.py
index 4fe809869edc0dd976ab3f51570bd93f6890291b..9562c44b16dfe7053f8cb4014753b35d57ce45be 100755
--- a/ivas_processing_scripts/processing/ivas.py
+++ b/ivas_processing_scripts/processing/ivas.py
@@ -227,6 +227,12 @@ class IVAS(Processing):
                 ]
             )
 
+        # check for special case of -stereo_dmx_evs
+        if "-stereo" in cmd and "-stereo_dmx_evs" in cmd:
+            # done this way to ensure `output_format` is replaced in the correct position
+            cmd.remove("-stereo_dmx_evs")
+            cmd[cmd.index("-stereo")] = "-stereo_dmx_evs"
+
         run(cmd, logger=logger)
 
     def simulate_tx(