diff --git a/doc/Makefile.am b/doc/Makefile.am
index 51b31a92..f66b47f1 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -28,7 +28,6 @@ diagram_files = \
 html/index.html: libinput.doxygen $(header_files) $(diagram_files)
 	$(AM_V_GEN)(cat $<; \
           echo "INPUT = $(header_files)"; \
-          echo "DOTFILE_DIRS = $(srcdir)/dot"; \
           ) | $(DOXYGEN) -
 
 clean-local:
diff --git a/doc/libinput.doxygen.in b/doc/libinput.doxygen.in
index 254e947a..155880a2 100644
--- a/doc/libinput.doxygen.in
+++ b/doc/libinput.doxygen.in
@@ -2251,7 +2251,7 @@ DOT_PATH               =
 # command).
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOTFILE_DIRS           =
+DOTFILE_DIRS           = @top_srcdir@/doc/dot
 
 # The MSCFILE_DIRS tag can be used to specify one or more directories that
 # contain msc files that are included in the documentation (see the \mscfile