diff --git a/src/libcmd/repl.cc b/src/libcmd/repl.cc
index 49865aa90..7269bdba5 100644
--- a/src/libcmd/repl.cc
+++ b/src/libcmd/repl.cc
@@ -622,7 +622,7 @@ ProcessLineResult NixRepl::processLine(std::string line)
             // TODO: this only shows a progress bar for explicitly initiated builds,
             // not eval-time fetching or builds performed for IFD.
             // But we can't just show it everywhere, since that would erase partial output from evaluation.
-            startProgressBar();
+            logger->resume();
             Finally stopLogger([&]() {
                 stopProgressBar();
             });
diff --git a/src/libmain/progress-bar.cc b/src/libmain/progress-bar.cc
index d83b09cd4..5d28db5f2 100644
--- a/src/libmain/progress-bar.cc
+++ b/src/libmain/progress-bar.cc
@@ -112,6 +112,8 @@ public:
     ~ProgressBar()
     {
         stop();
+        quitCV.notify_one();
+        updateThread.join();
     }
 
     /* Called by destructor, can't be overridden */
@@ -123,9 +125,7 @@ public:
             state->active = false;
             writeToStderr("\r\e[K");
             updateCV.notify_one();
-            quitCV.notify_one();
         }
-        updateThread.join();
     }
 
     void pause() override {
@@ -135,6 +135,7 @@ public:
 
     void resume() override {
         state_.lock()->paused = false;
+        state_.lock()->active = isTTY;
         writeToStderr("\r\e[K");
         state_.lock()->haveUpdate = true;
         updateCV.notify_one();