diff --git a/qapi/block-core.json b/qapi/block-core.json
index fbbc709e9d80798eb74850dbcbd20e72cad6eec0..9bf1b22b72341b5b1cb67ce5b2de1e2f246f9b8a 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -1321,7 +1321,7 @@
 #
 # @iops: total I/O operations per second
 #
-# @ops_rd: read I/O operations per second
+# @iops_rd: read I/O operations per second
 #
 # @iops_wr: write I/O operations per second
 #