diff --git a/Makefile b/Makefile
index 428c3f1..6247746 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,9 @@ path_perf_test=${path_test}/perf
 
 perf_tests := $(shell find "$(path_perf_test)" -name 'perf-*.js')
 
+src_js := index.js $(wildcard $(path_lib)/*.js)
+src_tests := index.js $(wildcard $(path_test)/test-*)
+
 path_doc := ./doc
 
 combine=${path_tools}/combine
diff --git a/doc/Makefile b/doc/Makefile
index 87661ba..87e3425 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -15,8 +15,6 @@ path_manual_texi=${path_doc}/manual.texi
 
 path_info_install := /usr/local/share/info
 
-src_js := index.js $(wildcard $(path_lib)/*.js)
-src_tests := index.js $(wildcard $(path_test)/test-*)
 doc_src := $(wildcard $(path_doc)/*.texi)
 doc_imgs := $(patsubst %.dia, %.png, $(wildcard $(path_doc_img)/*.dia))
 doc_imgs_txt := $(patsubst %.dia, %.png, $(wildcard $(path_doc_img)/*.txt))