diff --git a/app/prj.conf b/app/prj.conf
index b3f1016620ea..cd182e5be16c 100644
--- a/app/prj.conf
+++ b/app/prj.conf
@@ -9,9 +9,6 @@ CONFIG_BUILD_OUTPUT_BIN=n
 # and usage in xtensa-build-zephyr.py
 CONFIG_BUILD_OUTPUT_STRIPPED=y
 
-# Generate zephyr.lst file
-CONFIG_OUTPUT_DISASSEMBLY=y
-
 CONFIG_HAVE_AGENT=n
 
 # Since Zephyr commit f0daf904bb0202c PICOLIBC is the new default.
diff --git a/scripts/xtensa-build-zephyr.py b/scripts/xtensa-build-zephyr.py
index 2e8f810d9444..66e5d80d780f 100755
--- a/scripts/xtensa-build-zephyr.py
+++ b/scripts/xtensa-build-zephyr.py
@@ -943,7 +943,7 @@ class InstFile:
 		InstFile("include/generated/sof_versions.h", "sof_versions.h",
 			 gzip=False, txt=True),
 		InstFile(BIN_NAME + ".elf"),
-		InstFile(BIN_NAME + ".lst", txt=True),
+		InstFile(BIN_NAME + ".lst", txt=True, optional=True),
 		InstFile(BIN_NAME + ".map", txt=True),
 
 		# CONFIG_BUILD_OUTPUT_STRIPPED