diff --git a/share/trick/makefiles/trickify.mk b/share/trick/makefiles/trickify.mk
index 9f2ab8c9..68aa90e8 100644
--- a/share/trick/makefiles/trickify.mk
+++ b/share/trick/makefiles/trickify.mk
@@ -115,7 +115,7 @@ TRICK_CFLAGS   += $(TRICKIFY_CXX_FLAGS)
 TRICK_CXXFLAGS += $(TRICKIFY_CXX_FLAGS)
 
 # Ensure we can process all headers
-TRICK_EXT_LIB_DIRS :=
+TRICK_EXT_LIB_DIRS := $(TRICKIFY_EXT_LIB_DIRS)
 
 .PHONY: all
 all: $(TRICKIFY_OBJECT_NAME) $(TRICKIFY_PYTHON_DIR)