diff --git a/boards/xtensa/intel_adsp_cavs25/intel_adsp_cavs25_defconfig b/boards/xtensa/intel_adsp_cavs25/intel_adsp_cavs25_defconfig
index b567634518dc..159ed9cfca22 100644
--- a/boards/xtensa/intel_adsp_cavs25/intel_adsp_cavs25_defconfig
+++ b/boards/xtensa/intel_adsp_cavs25/intel_adsp_cavs25_defconfig
@@ -19,3 +19,5 @@ CONFIG_CAVS_ICTL=y
 CONFIG_BOOTLOADER_SRAM_SIZE=192
 CONFIG_BUILD_OUTPUT_BIN=n
 CONFIG_CLEANUP_INTERMEDIATE_FILES=y
+
+CONFIG_MP_NUM_CPUS=4