diff --git a/docker/map-binaries.sh b/docker/map-binaries.sh
index 89b1e83c20..c70a1f4f33 100755
--- a/docker/map-binaries.sh
+++ b/docker/map-binaries.sh
@@ -18,10 +18,13 @@ fi
 OUTFILENAME=""
 if [[ "$RENAME" == "false" ]]; then
   OUTFILENAME="${FILEBASENAME}"
-elif [["$RENAME" == "true" ]]; then
-  OUTFILENAME=gitea
 else
-  OUTFILENAME="${RENAME}"
+  # not using elif as busybox can't handle it...
+  if [["$RENAME" == "true" ]]; then
+    OUTFILENAME=gitea
+  else
+    OUTFILENAME="${RENAME}"
+  fi
 fi
 
 FILE_WIHTOUT_PLATFORM="${FILEBASENAME}-${FILEVERSION}"