diff --git a/src/libfetchers/git.cc b/src/libfetchers/git.cc
index 8b6e047f1..5ca0f8521 100644
--- a/src/libfetchers/git.cc
+++ b/src/libfetchers/git.cc
@@ -269,7 +269,7 @@ struct GitInputScheme : InputScheme
                 // modified dirty file?
                 input.attrs.insert_or_assign(
                     "lastModified",
-                    haveCommits ? std::stoull(runProgram("git", true, { "-C", actualUrl, "log", "-1", "--format=%ct", "HEAD" })) : 0);
+                    haveCommits ? std::stoull(runProgram("git", true, { "-C", actualUrl, "log", "-1", "--format=%ct", "--no-show-signature", "HEAD" })) : 0);
 
                 return {
                     Tree(store->printStorePath(storePath), std::move(storePath)),
@@ -421,7 +421,7 @@ struct GitInputScheme : InputScheme
 
         auto storePath = store->addToStore(name, tmpDir, FileIngestionMethod::Recursive, htSHA256, filter);
 
-        auto lastModified = std::stoull(runProgram("git", true, { "-C", repoDir, "log", "-1", "--format=%ct", input.getRev()->gitRev() }));
+        auto lastModified = std::stoull(runProgram("git", true, { "-C", repoDir, "log", "-1", "--format=%ct", "--no-show-signature", input.getRev()->gitRev() }));
 
         Attrs infoAttrs({
             {"rev", input.getRev()->gitRev()},
diff --git a/src/libstore/daemon.cc b/src/libstore/daemon.cc
index 538d3b77f..9d60c994d 100644
--- a/src/libstore/daemon.cc
+++ b/src/libstore/daemon.cc
@@ -726,7 +726,7 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
         auto path = store->parseStorePath(readString(from));
         logger->startWork();
         logger->stopWork();
-        dumpPath(store->toRealPath(store->printStorePath(path)), to);
+        dumpPath(store->toRealPath(path), to);
         break;
     }