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-rw-r--r--c++/test/tvlstr.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/c++/test/tvlstr.cpp b/c++/test/tvlstr.cpp
index 8f0c0ab..77bf378 100644
--- a/c++/test/tvlstr.cpp
+++ b/c++/test/tvlstr.cpp
@@ -187,7 +187,7 @@ test_vlstring_dataset()
// Test scalar type dataset with 1 value.
dset1 = root.createDataSet("test_scalar_small", vlst, ds_space);
- dynstring_ds_write = (char *)HDcalloc(1, sizeof(char));
+ dynstring_ds_write = (char *)HDcalloc(2, sizeof(char));
HDmemset(dynstring_ds_write, 'A', 1);
// Write data to the dataset, then read it back.