diff --git a/src/sentry/lang/native/sources.py b/src/sentry/lang/native/sources.py
index 29339e3c69aef6..ea470f0c4f1548 100644
--- a/src/sentry/lang/native/sources.py
+++ b/src/sentry/lang/native/sources.py
@@ -584,7 +584,7 @@ def fetch_token_for_gcp_source(source, organization):
                 # if target_credentials.token is None it means that the
                 # token could not be fetched successfully
                 if token is not None:
-                    source["bearer_token"] = token
+                    source["bearer_token"] = "Bearer " + token
 
                     # Remove other credentials if we have a token
                     if "client_email" in source:
diff --git a/tests/sentry/lang/native/test_sources.py b/tests/sentry/lang/native/test_sources.py
index ec2d36097baca4..3e52c098da57a1 100644
--- a/tests/sentry/lang/native/test_sources.py
+++ b/tests/sentry/lang/native/test_sources.py
@@ -57,7 +57,7 @@ def test_sources_gcp_bearer_authentication(self, mock_get_gcp_token, default_pro
         for i in (1, 2):
             assert "client_email" not in sources[i]
             assert "private_key" not in sources[i]
-            assert sources[i]["bearer_token"] == "ya29.TOKEN"
+            assert sources[i]["bearer_token"] == "Bearer ya29.TOKEN"
 
     @override_settings(SENTRY_BUILTIN_SOURCES=SENTRY_BUILTIN_SOURCES_TEST)
     @patch("sentry.lang.native.sources.get_gcp_token")
@@ -84,7 +84,7 @@ def test_source_alias(self, mock_get_gcp_token, default_project):
         for i in (1, 2):
             assert "client_email" not in sources[i]
             assert "private_key" not in sources[i]
-            assert sources[i]["bearer_token"] == "ya29.TOKEN"
+            assert sources[i]["bearer_token"] == "Bearer ya29.TOKEN"
 
 
 class TestIgnoredSourcesFiltering: