diff --git a/api_client_iter.go b/api_client_iter.go
index ccef323..a965105 100644
--- a/api_client_iter.go
+++ b/api_client_iter.go
@@ -25,7 +25,6 @@ func getIterResult(
 	if err != nil {
 		return nil, fmt.Errorf("failed to fetch next page: %w", err)
 	}
-
 	defer response.Body.Close()
 
 	body, err := io.ReadAll(response.Body)
@@ -33,6 +32,14 @@ func getIterResult(
 		return nil, fmt.Errorf("failed to read response: %w", err)
 	}
 
+	if response.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf(
+			"got http status code %d status while fetching next page: %s",
+			response.StatusCode,
+			body,
+		)
+	}
+
 	type ResponseWithNext struct {
 		Next string `json:"next"`
 	}
diff --git a/api_client_iter_test.go b/api_client_iter_test.go
index 89a366c..70f50f1 100644
--- a/api_client_iter_test.go
+++ b/api_client_iter_test.go
@@ -55,7 +55,7 @@ func TestIterGet(t *testing.T) {
 
 }
 
-func TestIterGetBadResponse(t *testing.T) {
+func TestIterGetBadResponseJson(t *testing.T) {
 	ct := newClientTest(
 		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			assert.Equal(t, "/leaksdb/sources", r.URL.Path)
@@ -82,6 +82,39 @@ func TestIterGetBadResponse(t *testing.T) {
 	assert.Equal(t, 1, lastPageIndex, "Didn't get the expected number of pages")
 }
 
+func TestIterGetBadResponseStatus(t *testing.T) {
+	ct := newClientTest(
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			// Correct response structure but bad response status code.
+			w.WriteHeader(http.StatusBadRequest)
+			w.Write([]byte(`"some error"`))
+		}),
+	)
+	defer ct.Close()
+
+	lastPageIndex := 0
+
+	for result, err := range ct.apiClient.IterGet(
+		"/leaksdb/sources",
+		nil,
+	) {
+		lastPageIndex = lastPageIndex + 1
+		if lastPageIndex > 2 {
+			// We are going crazy here...
+			break
+		}
+		assert.ErrorContains(
+			t,
+			err,
+			`got http status code 400 status while fetching next page: "some error"`,
+			"Bad HTTP status should trigger an error",
+		)
+		assert.Nil(t, result, "result should be nil on errors")
+	}
+
+	assert.Equal(t, 1, lastPageIndex, "Didn't get the expected number of pages")
+}
+
 func TestIterPostJson(t *testing.T) {
 	ct := newClientTest(
 		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {