1 files changed, 4 insertions, 1 deletions

diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index 85be95d557f..b94bca5359a 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -3370,7 +3370,10 @@ void DerivationGoal::registerOutputs()
         assert(false); // shouldn't happen
     }
 
-    if (settings.keepFailed) {
+    /* Rename the built package when doing multiple rounds, but
+       don't move the package when running in check mode, since
+       that would remove the valid package from the store. */
+    if (settings.keepFailed && buildMode != bmCheck) {
         for (auto & i : drv.outputs) {
             Path prev = i.second.path + checkSuffix;
             if (pathExists(prev)) deletePath(prev);