diff --git a/soc/riscv/riscv-privileged/common/CMakeLists.txt b/soc/riscv/riscv-privileged/common/CMakeLists.txt
index 50ee91a2c3..d1ec3daceb 100644
--- a/soc/riscv/riscv-privileged/common/CMakeLists.txt
+++ b/soc/riscv/riscv-privileged/common/CMakeLists.txt
@@ -3,8 +3,9 @@
 zephyr_include_directories(.)
 
 zephyr_sources(
-  idle.c
   soc_irq.S
   soc_common_irq.c
   vector.S
   )
+
+zephyr_sources_ifdef(CONFIG_RISCV_HAS_CPU_IDLE idle.c)