diff --git a/Makefile.am b/Makefile.am
index 1094fcb..58e98d0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -19,3 +19,7 @@ doc : Doxyfile
 
 .PHONY: doc
 endif
+
+INDENT_CMD = indent -br -brs -ce --line-length120 -nut -i2
+indent:
+	find $(top_srcdir)/libnfc $(top_srcdir)/include $(top_srcdir)/examples -name "*.[hc]" -exec $(INDENT_CMD) '{}' \;