Fix variable name
diff --git a/_posts/2019-09-03-faster-strings-cpp-parquet.md b/_posts/2019-09-03-faster-strings-cpp-parquet.md
index 23293f5..e868c40 100644
--- a/_posts/2019-09-03-faster-strings-cpp-parquet.md
+++ b/_posts/2019-09-03-faster-strings-cpp-parquet.md
@@ -112,7 +112,7 @@
diagram:
<div align="center">
-<img src="{{ site.base-url }}/img/20190903-parquet-dictionary-column-chunk.png"
+<img src="{{ site.baseurl }}/img/20190903-parquet-dictionary-column-chunk.png"
alt="Internal ColumnChunk structure"
width="80%" class="img-responsive">
</div>
@@ -177,7 +177,7 @@
First, the writing benchmarks:
<div align="center">
-<img src="{{ site.base-url }}/img/20190903_parquet_write_perf.png"
+<img src="{{ site.baseurl }}/img/20190903_parquet_write_perf.png"
alt="Parquet write benchmarks"
width="80%" class="img-responsive">
</div>
@@ -189,7 +189,7 @@
Then, the reading benchmarks:
<div align="center">
-<img src="{{ site.base-url }}/img/20190903_parquet_read_perf.png"
+<img src="{{ site.baseurl }}/img/20190903_parquet_read_perf.png"
alt="Parquet read benchmarks"
width="80%" class="img-responsive">
</div>
@@ -236,4 +236,4 @@
[10]: https://github.com/apache/parquet-format/blob/master/Encodings.md
[11]: https://gist.github.com/wesm/b4554e2d6028243a30eeed2c644a9066
[12]: https://issues.apache.org/jira/browse/ARROW-6417
-[13]: https://www.mathworks.com/help/matlab/categorical-arrays.html
\ No newline at end of file
+[13]: https://www.mathworks.com/help/matlab/categorical-arrays.html
