diff --git a/docs/source/api/global_index.rst b/docs/source/api/global_index.rst
index 25ed73d7..2f0826b0 100644
--- a/docs/source/api/global_index.rst
+++ b/docs/source/api/global_index.rst
@@ -13,7 +13,7 @@
 .. limitations under the License.
 
 ============
-GLobal Index
+Global Index
 ============
 
 .. _cpp-api-global-index: