diff --git a/src/nix/path-info.cc b/src/nix/path-info.cc
index 2383fbe080a..e7cfb6e7a68 100644
--- a/src/nix/path-info.cc
+++ b/src/nix/path-info.cc
@@ -9,6 +9,8 @@
 
 #include <nlohmann/json.hpp>
 
+#include "strings.hh"
+
 using namespace nix;
 using nlohmann::json;
 
@@ -185,7 +187,7 @@ struct CmdPathInfo : StorePathsCommand, MixJSON
                     if (info->ultimate) ss.push_back("ultimate");
                     if (info->ca) ss.push_back("ca:" + renderContentAddress(*info->ca));
                     for (auto & sig : info->sigs) ss.push_back(sig);
-                    std::cout << dropEmptyInitThenConcatStringsSep(" ", ss);
+                    std::cout << concatStringsSep(" ", ss);
                 }
 
                 std::cout << std::endl;