diff --git a/config/recurse.mk b/config/recurse.mk
--- a/config/recurse.mk
+++ b/config/recurse.mk
@@ -206,7 +206,7 @@
 # Interdependencies that moz.build world don't know about yet for compilation.
 # Note some others are hardcoded or "guessed" in recursivemake.py and emitter.py
 ifeq ($(MOZ_WIDGET_TOOLKIT),gtk)
-toolkit/library/target: widget/gtk/mozgtk/gtk3/target
+toolkit/library/build/target: widget/gtk/mozgtk/gtk3/target
 endif
 
 ifndef MOZ_FOLD_LIBS