diff --git a/documentation/Makefile b/documentation/Makefile
--- a/documentation/Makefile
+++ b/documentation/Makefile
@@ -29,12 +29,20 @@
 
 .ORDER: all run
 
+.ORDER: requirements
 .ORDER: starting-message generate-books-toc
 .ORDER: starting-message build
 .ORDER: generate-books-toc build
 
-all: starting-message generate-books-toc build
-run: starting-message generate-books-toc run-local
+all: requirements starting-message generate-books-toc build
+run: requirements starting-message generate-books-toc run-local
+
+requirements:
+.for dep in ${PYTHON_CMD} ${HUGO_CMD} /usr/local/bin/asciidoctor /usr/local/bin/rougify
+.if !exists(${dep})
+	@(echo ${dep} not found, please run 'pkg install docproj'; exit 1;)
+.endif
+.endfor
 
 starting-message: .PHONY
 	@echo ---------------------------------------------------------------