diff --git a/config.h b/config.h
index c3c575f..e64acf9 100644
--- a/config.h
+++ b/config.h
@@ -1 +1,3 @@
 #define PRERELEASE
+#define HAVE_PNG
+#define HAVE_JPEG
diff --git a/meson.build b/meson.build
index 4eb1a64..3474c83 100644
--- a/meson.build
+++ b/meson.build
@@ -8,6 +8,8 @@ cc = meson.get_compiler('c')
 
 openmotif = cc.find_library('Xm', required: true)
 xmu = dependency('xmu')
+libpng = dependency('libpng')
+libjpeg = dependency('libjpeg')
 
 include_dir = include_directories('.')
 
diff --git a/src/meson.build b/src/meson.build
index 8352e54..051cef2 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -51,7 +51,9 @@ exe = executable('Mosaic', sources, dependencies: [
     Xmx,
     htmlw,
     nut,
-    openmotif
+    openmotif,
+    libpng,
+    libjpeg
 ],
     install: true
 )