1 files changed, 2 insertions, 0 deletions
diff --git a/erlang.mk b/erlang.mk
index 10f42dc..9fde6ad 100644
--- a/erlang.mk
+++ b/erlang.mk
@@ -709,6 +709,8 @@ RELX_OUTPUT_DIR ?= _rel
 
 ifeq ($(firstword $(RELX_OPTS)),-o)
 	RELX_OUTPUT_DIR = $(word 2,$(RELX_OPTS))
+else
+	RELX_OPTS += -o $(RELX_OUTPUT_DIR)
 endif
 
 # Core targets.