diff --git a/include/meson.build b/include/meson.build
index 165166c33..2881b97c1 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -29,6 +29,29 @@ install_subdir('wlr',
 	exclude_files: exclude_files,
 )
 
+internal_render_headers = [
+	'render/pixman.h',
+	'render/pixel_format.h',
+]
+if features.get('gles2-renderer')
+	internal_render_headers += [
+		'render/egl.h',
+		'render/gles2.h',
+	]
+endif
+if features.get('vulkan-renderer')
+	internal_render_headers += 'render/vulkan.h'
+endif
+
+install_headers(internal_render_headers,
+	subdir: versioned_name,
+	preserve_path: true,
+)
+
+install_headers('util/rect_union.h',
+	subdir: versioned_name / 'util',
+)
+
 foreach name, have : internal_features
 	internal_config.set10('HAVE_' + name.underscorify().to_upper(), have)
 endforeach
diff --git a/tinywl/Makefile b/tinywl/Makefile
index 0f1c4cb13..c8f38d999 100644
--- a/tinywl/Makefile
+++ b/tinywl/Makefile
@@ -1,8 +1,9 @@
 PKG_CONFIG?=pkg-config
 
 PKGS="wlroots-0.21" wayland-server xkbcommon
+CFLAGS_PIXMAN!=$(PKG_CONFIG) --cflags pixman-1
 CFLAGS_PKG_CONFIG!=$(PKG_CONFIG) --cflags $(PKGS)
-CFLAGS+=$(CFLAGS_PKG_CONFIG)
+CFLAGS+=$(CFLAGS_PIXMAN) $(CFLAGS_PKG_CONFIG)
 LIBS!=$(PKG_CONFIG) --libs $(PKGS)
 
 all: tinywl