diff --git a/avogadro/CMakeLists.txt b/avogadro/CMakeLists.txt
index 3aab6e2d..bbefdf6a 100644
--- a/avogadro/CMakeLists.txt
+++ b/avogadro/CMakeLists.txt
@@ -225,7 +225,7 @@ else()
   set_target_properties(avogadro PROPERTIES OUTPUT_NAME "avogadro2")
 endif()
 if(ENABLE_TESTING)
-  target_link_libraries(avogadro QtTesting)
+  target_link_libraries(avogadro qttesting)
 endif()
 if(QT_VERSION EQUAL 6)
   target_link_libraries(avogadro Qt6::OpenGL Qt6::OpenGLWidgets)