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-rw-r--r--lib/Handle.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Handle.cc b/lib/Handle.cc
index 28c1086..6c3bbbd 100644
--- a/lib/Handle.cc
+++ b/lib/Handle.cc
@@ -216,7 +216,7 @@ void Handle::SetZ(int az) throw (GeneralException) {
if (CanWrite()) {
format[index++] = 'w';
}
- format[index++] = (char) (z + '0');
+ format[index++] = (char) (az + '0');
format[index] = 0;
cerr << "Performing gzdopen on handle " << h << " with mode \"" << format << "\"\n";
if (!(zfile = gzdopen(h, format))) {