diff --git a/builds/freetype.mk b/builds/freetype.mk
index b6ff865b7..3bef2e347 100644
--- a/builds/freetype.mk
+++ b/builds/freetype.mk
@@ -363,7 +363,7 @@ distclean_project_dos: clean_project_dos
 # Remove configuration file (used for distclean).
 #
 remove_config_mk:
-	-$(DELETE) $(subst /,$(SEP),$(CONFIG_MK) $(NO_OUTPUT))
+	-$(DELETE) $(subst /,$(SEP),$(TOP_DIR)/config.mk $(NO_OUTPUT))
 
 # Remove module list (used for distclean).
 #
diff --git a/builds/toplevel.mk b/builds/toplevel.mk
index aaace5920..4d396758c 100644
--- a/builds/toplevel.mk
+++ b/builds/toplevel.mk
@@ -82,7 +82,7 @@ MODULES := $(FONT_MODULES)    \
            $(AUX_MODULES)
 
 
-CONFIG_MK ?= config.mk
+CONFIG_MK ?= $(TOP_DIR)/config.mk
 
 # If no configuration sub-makefile is present, or if `setup' is the target
 # to be built, run the auto-detection rules to figure out which