diff --git a/buildroot-external/configs/rpi3_64-gui_defconfig b/buildroot-external/configs/rpi3_64-gui_defconfig
index 95aeec7d..8563816c 100644
--- a/buildroot-external/configs/rpi3_64-gui_defconfig
+++ b/buildroot-external/configs/rpi3_64-gui_defconfig
@@ -235,6 +235,7 @@ BR2_PACKAGE_MIMIC=y
 BR2_PACKAGE_MIMIC_AUDIO_BACKEND_PULSEAUDIO=y
 BR2_PACKAGE_MPV=y
 BR2_PACKAGE_PULSEAUDIO_DAEMON=y
+BR2_PACKAGE_SOX=y
 BR2_PACKAGE_SQUEEZELITE=y
 BR2_PACKAGE_SQUEEZELITE_RESAMPLE=y
 BR2_PACKAGE_VLC=y
diff --git a/buildroot-external/configs/rpi4_64-gui_defconfig b/buildroot-external/configs/rpi4_64-gui_defconfig
index 5f093732..d190e4ed 100644
--- a/buildroot-external/configs/rpi4_64-gui_defconfig
+++ b/buildroot-external/configs/rpi4_64-gui_defconfig
@@ -236,6 +236,7 @@ BR2_PACKAGE_MIMIC=y
 BR2_PACKAGE_MIMIC_AUDIO_BACKEND_PULSEAUDIO=y
 BR2_PACKAGE_MPV=y
 BR2_PACKAGE_PULSEAUDIO_DAEMON=y
+BR2_PACKAGE_SOX=y
 BR2_PACKAGE_SQUEEZELITE=y
 BR2_PACKAGE_SQUEEZELITE_RESAMPLE=y
 BR2_PACKAGE_VLC=y