diff --git a/src/cmd/go/alldocs.go b/src/cmd/go/alldocs.go
index 46466fd5c85859..4124eef78adeb7 100644
--- a/src/cmd/go/alldocs.go
+++ b/src/cmd/go/alldocs.go
@@ -127,8 +127,17 @@
 //		Supported only on linux/amd64 or linux/arm64 and only with GCC 7 and higher
 //		or Clang/LLVM 9 and higher.
 //	-cover
-//		enable code coverage instrumentation (requires
-//		that GOEXPERIMENT=coverageredesign be set).
+//		enable code coverage instrumentation.
+//	-covermode set,count,atomic
+//		set the mode for coverage analysis.
+//		The default is "set" unless -race is enabled,
+//		in which case it is "atomic".
+//		The values:
+//		set: bool: does this statement run?
+//		count: int: how many times does this statement run?
+//		atomic: int: count, but correct in multithreaded tests;
+//			significantly more expensive.
+//		Sets -cover.
 //	-coverpkg pattern1,pattern2,pattern3
 //		For a build that targets package 'main' (e.g. building a Go
 //		executable), apply coverage analysis to each package matching
@@ -142,7 +151,6 @@
 //		do not delete it when exiting.
 //	-x
 //		print the commands.
-//
 //	-asmflags '[pattern=]arg list'
 //		arguments to pass on each go tool asm invocation.
 //	-buildmode mode
diff --git a/src/cmd/go/internal/work/build.go b/src/cmd/go/internal/work/build.go
index 1e6f5c9d76cafb..552cc2a6d4765e 100644
--- a/src/cmd/go/internal/work/build.go
+++ b/src/cmd/go/internal/work/build.go
@@ -84,8 +84,17 @@ and test commands:
 		Supported only on linux/amd64 or linux/arm64 and only with GCC 7 and higher
 		or Clang/LLVM 9 and higher.
 	-cover
-		enable code coverage instrumentation (requires
-		that GOEXPERIMENT=coverageredesign be set).
+		enable code coverage instrumentation.
+	-covermode set,count,atomic
+		set the mode for coverage analysis.
+		The default is "set" unless -race is enabled,
+		in which case it is "atomic".
+		The values:
+		set: bool: does this statement run?
+		count: int: how many times does this statement run?
+		atomic: int: count, but correct in multithreaded tests;
+			significantly more expensive.
+		Sets -cover.
 	-coverpkg pattern1,pattern2,pattern3
 		For a build that targets package 'main' (e.g. building a Go
 		executable), apply coverage analysis to each package matching
@@ -99,7 +108,6 @@ and test commands:
 		do not delete it when exiting.
 	-x
 		print the commands.
-
 	-asmflags '[pattern=]arg list'
 		arguments to pass on each go tool asm invocation.
 	-buildmode mode