diff --git a/samples/subsys/audio/sof/prj.conf b/samples/subsys/audio/sof/prj.conf
index 033a9bef442..ae16a6dd8a8 100644
--- a/samples/subsys/audio/sof/prj.conf
+++ b/samples/subsys/audio/sof/prj.conf
@@ -8,6 +8,10 @@ CONFIG_DEBUG_MEMORY_USAGE_SCAN=n
 # Ensure -O2 (or similar) is used for optimization
 CONFIG_SPEED_OPTIMIZATIONS=y
 
+# Zephyr top-level default of -fno-strict-overflow is
+# not a good fit for audio DSP code
+CONFIG_COMPILER_OPT="-fstrict-overflow"
+
 CONFIG_SCHED_DEADLINE=y
 CONFIG_SCHED_CPU_MASK=y
 CONFIG_SMP_BOOT_DELAY=y