2 files changed, 3 insertions, 2 deletions
diff --git a/src/nix-store/dotgraph.cc b/src/nix-store/dotgraph.cc
index 51dedcf0a092..abdfa5e58f93 100644
--- a/src/nix-store/dotgraph.cc
+++ b/src/nix-store/dotgraph.cc
@@ -47,8 +47,7 @@ static string makeNode(const string & id, const string & label,
 static string symbolicName(const string & path)
 {
     string p = baseNameOf(path);
-    int dash = p.find('-');
-    return string(p, dash + 1);
+    return string(p, p.find('-') + 1);
 }
 
 
diff --git a/src/nix-store/nix-store.cc b/src/nix-store/nix-store.cc
index efef7f15c094..e1e27ceef94d 100644
--- a/src/nix-store/nix-store.cc
+++ b/src/nix-store/nix-store.cc
@@ -631,6 +631,7 @@ static void opDump(Strings opFlags, Strings opArgs)
     FdSink sink(STDOUT_FILENO);
     string path = *opArgs.begin();
     dumpPath(path, sink);
+    sink.flush();
 }
 
 
@@ -656,6 +657,7 @@ static void opExport(Strings opFlags, Strings opArgs)
 
     FdSink sink(STDOUT_FILENO);
     store->exportPaths(opArgs, sink);
+    sink.flush();
 }