diff --git a/build/Makefile b/build/Makefile
index 5113996..ba3d85d 100644
--- a/build/Makefile
+++ b/build/Makefile
@@ -1,5 +1,3 @@
-.PHONY: all release build transcrypt copy $(RES_LESS_FILE) $(RES_PY_FILE) $(RES_HTML_FILE) $(RES_XML_FILE)
-
 SRC_FOLDER=$(CURDIR)/../src
 RES_FOLDER=$(CURDIR)/../res
 
@@ -20,6 +18,7 @@ RES_PY_FILE=$(SRC_FOLDER)/$(PY_FILE)
 RES_HTML_FILE=$(RES_FOLDER)/$(HTML_FILE)
 RES_XML_FILE=$(RES_FOLDER)/$(XML_FILE)
 
+.PHONY: all release build transcrypt copy $(RES_LESS_FILE) $(RES_PY_FILE) $(RES_HTML_FILE) $(RES_XML_FILE) $(CONV_FILE)
 .DEFAULT_GOAL := all
 
 all: BR_FLAGS := $(BR_FLAGS) --debug
diff --git a/build/download_structure_conversions.sh b/build/download_structure_conversions.sh
index e313eb9..db8540a 100755
--- a/build/download_structure_conversions.sh
+++ b/build/download_structure_conversions.sh
@@ -3,15 +3,19 @@
 # fail if any command fails
 set -e
 
+OUT_FILE=conversions.csv
+
 if [[ -z "${API_KEY}" ]]; then
   echo "API_KEY not defined, should be api key to CJVT's gitea"
   exit 1
 fi
 
-OUT_FILE=conversions.csv
-TEMP_FILE=$(mktemp)
+if [ -f $OUT_FILE ]; then
+  echo "file for conversion of SKE collocations: '$OUT_FILE' already exists, skipping."
+  exit 0
+fi
 
-rm -r $OUT_FILE
+TEMP_FILE=$(mktemp)
 
 curl -s "https://gitea.cjvt.si/api/v1/repos/generic/data_admin/contents/resources/structure_conversions.csv?token=$API_KEY" -o $TEMP_FILE
 echo "wc: $(wc $TEMP_FILE)"