diff --git a/doc/Makefile b/doc/Makefile
index c28150db0b0940031b6dbc380eceed4edeaa4b66..7e36b9dcf0545c5ad6bce1f73ee25c3f83cfa057 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -6,7 +6,7 @@ include ../colors.mk
 include config.mk
 
 MAN_SOURCES=$(wildcard man/*.rst) $(wildcard man/*.txt) man/conf.py
-DOXYGEN_SOURCES=$(wildcard ../*.h) Doxyfile
+DOXYGEN_SOURCES=$(wildcard ../zathura/*.h) Doxyfile
 HTML_SOURCES=$(wildcard *.rst api/*.rst configuration/*.rst installation/*.rst usage/*.rst) conf.py
 
 SPHINX_OPTS+=-d $(SPHINX_BUILDDIR)/doctrees