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-rw-r--r--src/nix-store/dotgraph.cc6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/nix-store/dotgraph.cc b/src/nix-store/dotgraph.cc
index c670bf19e4c5..b13846c049c1 100644
--- a/src/nix-store/dotgraph.cc
+++ b/src/nix-store/dotgraph.cc
@@ -39,9 +39,9 @@ static string makeNode(const string & id, const string & label,
 static string symbolicName(const string & path)
 {
     string p = baseNameOf(path);
-    if (isHash(string(p, 0, Hash::hashSize * 2)) && 
-	p[Hash::hashSize * 2] == '-')
-	p = string(p, Hash::hashSize * 2 + 1);
+    if (isHash(string(p, 0, md5HashSize * 2)) && 
+	p[md5HashSize * 2] == '-')
+	p = string(p, md5HashSize * 2 + 1);
     return p;
 }