diff --git a/src/cmd/dist/build.c b/src/cmd/dist/build.c
index 70b7fb10566..2e0f5b6360e 100644
--- a/src/cmd/dist/build.c
+++ b/src/cmd/dist/build.c
@@ -524,6 +524,7 @@ static struct {
 		"anames5.c",
 		"anames6.c",
 		"anames8.c",
+		"anames9.c",
 	}},
 	{"cmd/cc", {
 		"-pgen.c",
@@ -622,6 +623,7 @@ static struct {
 	{"anames5.c", mkanames},
 	{"anames6.c", mkanames},
 	{"anames8.c", mkanames},
+	{"anames9.c", mkanames},
 	{"zasm_", mkzasm},
 	{"zdefaultcc.go", mkzdefaultcc},
 	{"zsys_", mkzsys},
diff --git a/src/cmd/dist/buildgc.c b/src/cmd/dist/buildgc.c
index 66adf6857c7..1c332975873 100644
--- a/src/cmd/dist/buildgc.c
+++ b/src/cmd/dist/buildgc.c
@@ -63,7 +63,7 @@ gcopnames(char *dir, char *file)
 	vfree(&fields);
 }
 
-// mkanames reads [568].out.h and writes anames[568].c
+// mkanames reads [5689].out.h and writes anames[5689].c
 // The format is much the same as the Go opcodes above.
 // it also writes out cnames array for C_* constants.
 void