1 files changed, 4 insertions, 0 deletions
diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc
index c2f5cdccb8c8..5321b294ab71 100644
--- a/src/nix-env/main.cc
+++ b/src/nix-env/main.cc
@@ -34,6 +34,10 @@ struct DrvInfo
     Path drvPath;
     Path outPath;
     Hash drvHash;
+
+    DrvInfo() : drvHash(htMD5)
+    {
+    }
 };
 
 typedef map<Path, DrvInfo> DrvInfos;