diff --git a/gnome/CMakeLists.txt b/gnome/CMakeLists.txt
index fc38555df5..538c6f2ee7 100644
--- a/gnome/CMakeLists.txt
+++ b/gnome/CMakeLists.txt
@@ -1 +1,3 @@
-install(FILES heif.thumbnailer DESTINATION ${CMAKE_INSTALL_DATADIR}/thumbnailers)
+if(WITH_EXAMPLES AND TARGET PNG::PNG)
+  install(FILES heif.thumbnailer DESTINATION ${CMAKE_INSTALL_DATADIR}/thumbnailers)
+endif()