diff --git a/soc/st/stm32/stm32n6x/CMakeLists.txt b/soc/st/stm32/stm32n6x/CMakeLists.txt
index 48adb916644..db6824e4109 100644
--- a/soc/st/stm32/stm32n6x/CMakeLists.txt
+++ b/soc/st/stm32/stm32n6x/CMakeLists.txt
@@ -26,7 +26,7 @@ else()
   set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
     COMMAND ${SIGNING_TOOL}
     -in ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.bin
-    -nk -t fsbl -hv 2.3
+    -nk -t fsbl -hv 2.3 --silent
     -o ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.signed.bin
     -dump ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.signed.bin
     WORKING_DIRECTORY ${PROJECT_BINARY_DIR}