diff --git a/sanitize.go b/sanitize.go
index 2e808ba6..db280d64 100644
--- a/sanitize.go
+++ b/sanitize.go
@@ -76,6 +76,8 @@ func (c *Connection) SanitizeSql(sql string, args ...interface{}) (output string
 			var s string
 			s, err = int64SliceToArrayString(arg)
 			return c.QuoteString(s)
+		case nil:
+			return "null"
 		default:
 			err = fmt.Errorf("Unable to sanitize type: %T", arg)
 			return ""
diff --git a/sanitize_test.go b/sanitize_test.go
index 0c1055b5..ef02db99 100644
--- a/sanitize_test.go
+++ b/sanitize_test.go
@@ -19,6 +19,10 @@ func TestQuoteString(t *testing.T) {
 func TestSanitizeSql(t *testing.T) {
 	conn := getSharedConnection(t)
 
+	if san, err := conn.SanitizeSql("select $1", nil); err != nil || san != "select null" {
+		t.Errorf("Failed to translate nil to null: %v - %v", san, err)
+	}
+
 	if san, err := conn.SanitizeSql("select $1", "Jack's"); err != nil || san != "select 'Jack''s'" {
 		t.Errorf("Failed to sanitize string: %v - %v", san, err)
 	}