diff --git a/libfat/Makefile b/libfat/Makefile
index 00ce6c8..f3e33a7 100644
--- a/libfat/Makefile
+++ b/libfat/Makefile
@@ -5,6 +5,8 @@ $(eval $(call add_include,libstring))
 
 cflags += -D"FAT_PRINTF(a)"
 
+DOCS_COLLECT = $(git ls-files '*.c' '*.h' ':!_fat.*' ':!_fatctx.h')
+
 libname := libfat
 
 include ../make/lib.mk
diff --git a/make/lib.mk b/make/lib.mk
index 96dca16..fac954d 100644
--- a/make/lib.mk
+++ b/make/lib.mk
@@ -10,6 +10,16 @@ include ../$(platform)/flags.mk
 
 FORMAT ?= clang-format -i $$(git ls-files '*.c' '*.h')
 
+DOCS_COLLECT ?= $$(git ls-files '*.c' '*.h')
+
+DOCS ?= \
+	rm -rf docs; \
+	clang-doc --format=md --output docs -p . $(DOCS_COLLECT); \
+	for f in ./docs/GlobalNamespace/*.md; do sed -i '/^\# Global Namespace/d' "$$f"; done; \
+	rm -rf ../docs/libs/$(libname); \
+	mkdir -p ../docs/libs/$(libname); \
+	cp ./docs/GlobalNamespace/*.md ../docs/libs/$(libname);
+
 all: build/$(libname).a
 
 build/$(libname).a: $(o)
@@ -28,11 +38,6 @@ format:
 	$(FORMAT)
 
 docs:
-	rm -rf docs
-	clang-doc --format=md --output docs -p . $$(git ls-files '*.h')
-	for f in ./docs/GlobalNamespace/*.md; do sed -i '/^# Global Namespace/d' "$$f"; done
-	rm -rf ../docs/libs/$(libname)
-	mkdir -p ../docs/libs/$(libname)
-	cp ./docs/GlobalNamespace/*.md ../docs/libs/$(libname)
+	$(DOCS)
 
 .PHONY: all clean format