diff --git a/src/libmain/loggers.cc b/src/libmain/loggers.cc
index c44bb6408..f62e9372c 100644
--- a/src/libmain/loggers.cc
+++ b/src/libmain/loggers.cc
@@ -1,12 +1,13 @@
 #include "loggers.hh"
 #include "progress-bar.hh"
+#include "util.hh"
 
 namespace nix {
 
 LogFormat defaultLogFormat = LogFormat::raw;
 
 LogFormat parseLogFormat(const std::string & logFormatStr) {
-    if (logFormatStr == "raw")
+    if (logFormatStr == "raw" || getEnv("NIX_GET_COMPLETIONS"))
         return LogFormat::raw;
     else if (logFormatStr == "raw-with-logs")
         return LogFormat::rawWithLogs;
diff --git a/src/nix/main.cc b/src/nix/main.cc
index 2ad748289..e62657e95 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -7,7 +7,6 @@
 #include "legacy.hh"
 #include "shared.hh"
 #include "store-api.hh"
-#include "progress-bar.hh"
 #include "filetransfer.hh"
 #include "finally.hh"
 #include "loggers.hh"