diff --git a/pkg/action/install.go b/pkg/action/install.go
index b3cab7160..b00ec6d88 100644
--- a/pkg/action/install.go
+++ b/pkg/action/install.go
@@ -332,9 +332,22 @@ func (i *Install) RunWithContext(ctx context.Context, ch ci.Charter, vals map[st
 		// not mutate the shared *Configuration passed to NewInstall.
 		// Callers that reuse the same cfg for a later real install must
 		// still observe the original client and storage. See #11463.
+		//
+		// Copy fields explicitly: Configuration embeds sync.Mutex and
+		// logging.LogHolder (atomic.Pointer), which must not be copied
+		// by value (govet copylocks).
 		origCfg := i.cfg
-		cfgCopy := *i.cfg
-		i.cfg = &cfgCopy
+		cfgCopy := &Configuration{
+			RESTClientGetter:    origCfg.RESTClientGetter,
+			Releases:            origCfg.Releases,
+			KubeClient:          origCfg.KubeClient,
+			RegistryClient:      origCfg.RegistryClient,
+			Capabilities:        origCfg.Capabilities,
+			CustomTemplateFuncs: origCfg.CustomTemplateFuncs,
+			HookOutputFunc:      origCfg.HookOutputFunc,
+		}
+		cfgCopy.SetLogger(origCfg.Logger().Handler())
+		i.cfg = cfgCopy
 		defer func() { i.cfg = origCfg }()
 
 		// Add mock objects in here so it doesn't use Kube API server