diff --git a/experiments/characterization/BS1534-19/config/BS1534-19.yml b/experiments/characterization/BS1534-19/config/BS1534-19.yml
index 55fb2f2660146c8638ed90ec9cd0d89f7e1fd2ba..e2789faa49b3fc5e4229b9114a1a0b23d9619e1b 100644
--- a/experiments/characterization/BS1534-19/config/BS1534-19.yml
+++ b/experiments/characterization/BS1534-19/config/BS1534-19.yml
@@ -106,7 +106,7 @@ conditions_to_generate:
             opts:
                 - -stereo_dmx_evs
         dec:
-            bin: ivas_processing_scripts/bin/IVAS_dec_fx
+            bin: ivas_processing_scripts/bin/EVS_dec_fx
     c08:
         type: ivas
         ivas_rend:
@@ -118,7 +118,7 @@ conditions_to_generate:
             opts:
                 - -stereo_dmx_evs
         dec:
-            bin: ivas_processing_scripts/bin/IVAS_dec_fx
+            bin: ivas_processing_scripts/bin/EVS_dec_fx
 
 ################################################
 ### Post-processing
diff --git a/ivas_processing_scripts/processing/ivas.py b/ivas_processing_scripts/processing/ivas.py
index 9562c44b16dfe7053f8cb4014753b35d57ce45be..28c207182819494c8796e0507b3d3763f742f1ca 100755
--- a/ivas_processing_scripts/processing/ivas.py
+++ b/ivas_processing_scripts/processing/ivas.py
@@ -232,6 +232,7 @@ class IVAS(Processing):
             # 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"
+            self.use_evs_dec = True # signal the decoder to use EVS commandline
 
         run(cmd, logger=logger)
 
@@ -392,7 +393,7 @@ class IVAS(Processing):
         else:
             output_format = self.out_fmt.name
 
-        if output_format == "":
+        if output_format == "" or getattr(self, "use_evs_dec", None):
             cmd.extend(
                 [
                     str(self.out_fs // 1000),