diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6132478..98739b5 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## tip
 
+* BUGFIX: fixed healthcheck
+
 ## [v0.10.0](https://github.com/VictoriaMetrics/victoriametrics-datasource/releases/tag/v0.10.0) 
 
 * FEATURE: set the default query type to `instant` when creating alerting rules. See [this issue](https://github.com/VictoriaMetrics/victoriametrics-datasource/issues/205).
diff --git a/pkg/plugin/datasource.go b/pkg/plugin/datasource.go
index 834749e..59dea5e 100644
--- a/pkg/plugin/datasource.go
+++ b/pkg/plugin/datasource.go
@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"io"
 	"net/http"
-	"path"
 	"strings"
 	"sync"
 	"time"
@@ -171,9 +170,9 @@ func (d *Datasource) CheckHealth(ctx context.Context, _ *backend.CheckHealthRequ
 	endpoint := d.settings.URL
 	idx := strings.Index(endpoint, "/select/")
 	if idx > 0 {
-		endpoint = path.Join(endpoint[:idx], health)
+		endpoint = fmt.Sprintf("%s%s", endpoint[:idx], health)
 	} else {
-		endpoint = path.Join(endpoint, health)
+		endpoint = fmt.Sprintf("%s%s", strings.TrimRight(endpoint, "/"), health)
 	}
 	r, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
 	if err != nil {