diff --git a/CMakeLists.txt b/CMakeLists.txt
index b67ccee6a..9d33e9a9a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -134,6 +134,7 @@ if(ENABLE_NOTIFY)
 endif()
 if(ENABLE_GTK_UI)
 	if(WIN32)
+		set(GTK2_DEBUG TRUE)
 		set(GTK2_ADDITIONAL_SUFFIXES "../lib/glib-2.0/include" "../lib/gtk-2.0/include")
 	endif()
 	find_package(GTK2 2.18 REQUIRED gtk)