diff --git a/internal/http/http.go b/internal/http/http.go
index 3c647544..d0b4d6c5 100644
--- a/internal/http/http.go
+++ b/internal/http/http.go
@@ -6,6 +6,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/url"
+	"strings"
 
 	opentracing "github.com/opentracing/opentracing-go"
 	"github.com/opentracing/opentracing-go/ext"
@@ -21,6 +23,14 @@ func PostJSON(
 		return err
 	}
 
+	parsedAPIURL, err := url.Parse(apiURL)
+	if err != nil {
+		return err
+	}
+
+	parsedAPIURL.Path = "/api/" + strings.TrimLeft(parsedAPIURL.Path, "/")
+	apiURL = parsedAPIURL.String()
+
 	req, err := http.NewRequest(http.MethodPost, apiURL, bytes.NewReader(jsonBytes))
 	if err != nil {
 		return err
@@ -48,10 +58,10 @@ func PostJSON(
 		var errorBody struct {
 			Message string `json:"message"`
 		}
-		if err = json.NewDecoder(res.Body).Decode(&errorBody); err != nil {
-			return err
+		if msgerr := json.NewDecoder(res.Body).Decode(&errorBody); msgerr == nil {
+			return fmt.Errorf("api: %d from %s: %s", res.StatusCode, apiURL, errorBody.Message)
 		}
-		return fmt.Errorf("api: %d: %s", res.StatusCode, errorBody.Message)
+		return fmt.Errorf("api: %d from %s", res.StatusCode, apiURL)
 	}
 	return json.NewDecoder(res.Body).Decode(response)
 }