diff --git a/examples/platforms/efr32mg1/logging.c b/examples/platforms/efr32mg1/logging.c
index ad873ddd1..fa0a4dde9 100644
--- a/examples/platforms/efr32mg1/logging.c
+++ b/examples/platforms/efr32mg1/logging.c
@@ -39,8 +39,7 @@
 
 #include <utils/logging_rtt.h>
 
-#if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED) || \
-    (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_NCP_SPINEL)
+#if (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_PLATFORM_DEFINED)
 void efr32LogInit(void)
 {
     utilsLogRttInit();
diff --git a/src/ncp/ncp_base.cpp b/src/ncp/ncp_base.cpp
index bb2378217..d7c66234d 100644
--- a/src/ncp/ncp_base.cpp
+++ b/src/ncp/ncp_base.cpp
@@ -2438,4 +2438,4 @@ extern "C" void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const ch
     va_end(args);
 }
 
-#endif // (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_NCP_SPINEL)
+#endif // (OPENTHREAD_CONFIG_LOG_OUTPUT == OPENTHREAD_CONFIG_LOG_OUTPUT_APP)