diff --git a/subsys/logging/Kconfig.processing b/subsys/logging/Kconfig.processing
index da0a90b8126..8f96cbfd15c 100644
--- a/subsys/logging/Kconfig.processing
+++ b/subsys/logging/Kconfig.processing
@@ -122,7 +122,7 @@ endif # LOG_PROCESS_THREAD
 config LOG_BUFFER_SIZE
 	int "Number of bytes dedicated for the logger internal buffer"
 	default 1024
-	range 128 65536
+	range 128 1048576
 	help
 	  Number of bytes dedicated for the logger internal buffer.