diff --git a/src/internal/coverage/cformat/fmt_test.go b/src/internal/coverage/cformat/fmt_test.go
index 4d6da44286e..576ed2c18c2 100644
--- a/src/internal/coverage/cformat/fmt_test.go
+++ b/src/internal/coverage/cformat/fmt_test.go
@@ -66,7 +66,7 @@ q.go:33.0,40.0 7 2`)
 		t.Fatalf("EmitPercent returned %v", err)
 	}
 	wantPercent := strings.TrimSpace(`
-my/pack	coverage: 62.5% of statements
+my/pack		coverage: 62.5% of statements
 `)
 	gotPercent := strings.TrimSpace(b2.String())
 	if wantPercent != gotPercent {
diff --git a/src/internal/coverage/cformat/format.go b/src/internal/coverage/cformat/format.go
index a8276ff124d..0e1d8caf99f 100644
--- a/src/internal/coverage/cformat/format.go
+++ b/src/internal/coverage/cformat/format.go
@@ -218,7 +218,7 @@ func (fm *Formatter) EmitPercent(w io.Writer, covpkgs string, noteEmpty bool) er
 				coveredStmts += nx
 			}
 		}
-		if _, err := fmt.Fprintf(w, "\t%s\t", importpath); err != nil {
+		if _, err := fmt.Fprintf(w, "\t%s\t\t", importpath); err != nil {
 			return err
 		}
 		if totalStmts == 0 {