diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b582d47080ab3..039067bca3fa9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -591,7 +591,7 @@
 			some critical bits.
 
 	cma=nn[MG]@[start[MG][-end[MG]]]
-			[ARM,X86,KNL]
+			[KNL,CMA]
 			Sets the size of kernel global memory area for
 			contiguous memory allocations and optionally the
 			placement constraint by the physical address range of