diff --git a/src/go/printer/nodes.go b/src/go/printer/nodes.go
index 0a693b6667..b9dac5da64 100644
--- a/src/go/printer/nodes.go
+++ b/src/go/printer/nodes.go
@@ -1739,6 +1739,15 @@ func (p *printer) genDecl(d *ast.GenDecl) {
 	p.setPos(d.Pos())
 	p.print(d.Tok, blank)
 
+	// Empty decls for "var ()", "const ()", "import ()"
+	if len(d.Specs) == 0 {
+		switch d.Tok {
+		case token.VAR, token.CONST, token.IMPORT:
+			p.print(token.LPAREN, token.RPAREN)
+			return
+		}
+	}
+
 	if d.Lparen.IsValid() || len(d.Specs) > 1 {
 		// group of parenthesized declarations
 		p.setPos(d.Lparen)
diff --git a/src/go/printer/printer_test.go b/src/go/printer/printer_test.go
index 8e78bc640e..f5e1419dde 100644
--- a/src/go/printer/printer_test.go
+++ b/src/go/printer/printer_test.go
@@ -848,3 +848,35 @@ func TestSourcePosNewline(t *testing.T) {
 		t.Errorf("unexpected Fprint output:\n%s", buf.Bytes())
 	}
 }
+
+// TestEmptyDecl tests that empty decls for const, var, import are printed with
+// valid syntax e.g "var ()" instead of just "var", which is invalid and cannot
+// be parsed.
+func TestEmptyDecl(t *testing.T) { // issue 63566
+	var tableTests = []struct {
+		tok      token.Token
+		expected string
+	}{
+		{
+			tok:      token.VAR,
+			expected: "var ()",
+		},
+		{
+			tok:      token.CONST,
+			expected: "const ()",
+		},
+		{
+			tok:      token.IMPORT,
+			expected: "import ()",
+		},
+	}
+
+	for _, tt := range tableTests {
+		var buf bytes.Buffer
+		Fprint(&buf, token.NewFileSet(), &ast.GenDecl{Tok: tt.tok})
+		got := buf.String()
+		if got != tt.expected {
+			t.Errorf("got %q, expected %q\n", got, tt.expected)
+		}
+	}
+}