diff --git a/icu4c/source/data/makedata.mak b/icu4c/source/data/makedata.mak
index 522283d587e..b0b813cde93 100644
--- a/icu4c/source/data/makedata.mak
+++ b/icu4c/source/data/makedata.mak
@@ -240,9 +240,9 @@ $(COREDATA_TS):
 		--tool_dir "$(ICUTOOLS)" \
 		--tool_cfg "$(CFG)" \
 		--out_dir "$(ICUBLD_PKG)" \
-		--tmp_dir "$(ICUTMP)"
+		--tmp_dir "$(ICUTMP)" \
 		--filter_file "$(ICU_DATA_FILTER_FILE)" \
-		$(ICU_DATA_BUILDTOOL_OPTS) \
+		$(ICU_DATA_BUILDTOOL_OPTS)
 	@echo "timestamp" > $(COREDATA_TS)