diff --git a/doc/rascsi_man_page.txt b/doc/rascsi_man_page.txt
index 998e7e41..d7a26229 100644
--- a/doc/rascsi_man_page.txt
+++ b/doc/rascsi_man_page.txt
@@ -1,3 +1,7 @@
+!!   ------ THIS FILE IS AUTO_GENERATED! DO NOT MANUALLY UPDATE!!!
+!!   ------ The native file is rascsi.1. Re-run 'make docs' after updating
+
+
 rascsi(1)                                      General Commands Manual                                     rascsi(1)
 
 NAME
diff --git a/doc/rasctl_man_page.txt b/doc/rasctl_man_page.txt
index b79f4090..9f2d5642 100644
--- a/doc/rasctl_man_page.txt
+++ b/doc/rasctl_man_page.txt
@@ -1,3 +1,7 @@
+!!   ------ THIS FILE IS AUTO_GENERATED! DO NOT MANUALLY UPDATE!!!
+!!   ------ The native file is rasctl.1. Re-run 'make docs' after updating
+
+
 rascsi(1)                                      General Commands Manual                                     rascsi(1)
 
 NAME
diff --git a/src/raspberrypi/Makefile b/src/raspberrypi/Makefile
index 4b59e0ff..883e8a0e 100644
--- a/src/raspberrypi/Makefile
+++ b/src/raspberrypi/Makefile
@@ -119,7 +119,9 @@ $(MAN_PAGE_DIR)/%.1 : $(DOC_DIR)/%.1
 	sudo cp $< $@
 
 $(DOC_DIR)/%_man_page.txt : $(DOC_DIR)/%.1
-	man -l $< | col -bx > $@
+	@echo "!!   ------ THIS FILE IS AUTO_GENERATED! DO NOT MANUALLY UPDATE!!!" > $@
+	@echo "!!   ------ The native file is $(notdir $<). Re-run 'make docs' after updating\n\n" >> $@
+	man -l $< | col -bx >> $@
 
 .PHONY: Debug
 Debug: scsimon