diff --git a/Chap_API_Reserved_Keys.tex b/Chap_API_Reserved_Keys.tex
index 128db08..182d7b9 100644
--- a/Chap_API_Reserved_Keys.tex
+++ b/Chap_API_Reserved_Keys.tex
@@ -515,7 +515,7 @@ \subsection{Node realm keys}
 }
 %
 \declareAttribute{PMIX_NODE_SIZE}{"pmix.node.size"}{uint32_t}{
-Number of processes across all jobs that are executing upon the node.
+Number of processes across all jobs executing upon the node, independent of whether the process has or will use PMIx.
 }
 %
 \declareAttribute{PMIX_AVAIL_PHYS_MEMORY}{"pmix.pmem"}{uint64_t}{