diff --git a/Makefile b/Makefile
index 7d2130fa5..b585662ce 100644
--- a/Makefile
+++ b/Makefile
@@ -146,7 +146,7 @@ lesson-files :
 
 ## * lesson-fixme     : show FIXME markers embedded in source files
 lesson-fixme :
-	@fgrep -i -n FIXME ${MARKDOWN_SRC} || true
+	@grep --fixed-strings --word-regexp --line-number --no-messages FIXME ${MARKDOWN_SRC} || true
 
 ##
 ## IV. Auxililary (plumbing) commands