diff --git a/changelog/unreleased/ocm-content-type.md b/changelog/unreleased/ocm-content-type.md
new file mode 100644
index 0000000000..cf170bc756
--- /dev/null
+++ b/changelog/unreleased/ocm-content-type.md
@@ -0,0 +1,6 @@
+Enhancement: fix content-type for OCM sharing
+
+This fix change the content type to just
+"application/json"
+
+https://github.com/cs3org/reva/pull/3313
diff --git a/pkg/ocm/share/sender/sender.go b/pkg/ocm/share/sender/sender.go
index 5cee734bad..3e2dd965ae 100644
--- a/pkg/ocm/share/sender/sender.go
+++ b/pkg/ocm/share/sender/sender.go
@@ -68,7 +68,7 @@ func Send(requestBodyMap map[string]interface{}, pi *ocmprovider.ProviderInfo) e
 	if err != nil {
 		return errors.Wrap(err, "sender: error framing post request")
 	}
-	req.Header.Set("Content-Type", "application/json; param=value")
+	req.Header.Set("Content-Type", "application/json")
 	client := rhttp.GetHTTPClient(
 		rhttp.Timeout(5 * time.Second),
 	)