diff --git a/doc/libevdev.doxygen.in b/doc/libevdev.doxygen.in
index 30416a3..4511ae8 100644
--- a/doc/libevdev.doxygen.in
+++ b/doc/libevdev.doxygen.in
@@ -668,7 +668,7 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT                  = ../libevdev/libevdev.h
+INPUT                  = @top_srcdir@/libevdev/libevdev.h
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
@@ -929,7 +929,7 @@ HTML_STYLESHEET        =
 # robust against future updates. Doxygen will copy the style sheet file to
 # the output directory.
 
-HTML_EXTRA_STYLESHEET  = libevdev.css
+HTML_EXTRA_STYLESHEET  = @srcdir@/libevdev.css
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note