diff --git a/api_response.go b/api_response.go
index 58b3039..b295e7a 100644
--- a/api_response.go
+++ b/api_response.go
@@ -555,9 +555,12 @@ func NewRawAPIResponse(r *http.Response) (*APIResponse, error) {
 
 // HasNextPage returns if response is paged and has next page and where it does start
 func HasNextPage(response *APIResponse) (isLastPage bool, nextPageStart int) {
-	isLastPage = response.Values["isLastPage"].(bool)
-	if !isLastPage {
-		nextPageStart = int(response.Values["nextPageStart"].(float64))
+	isLastPage, ok := response.Values["isLastPage"].(bool)
+	if ok && !isLastPage {
+		floatStart, ok := response.Values["nextPageStart"].(float64)
+		if ok {
+			nextPageStart = int(floatStart)
+		}
 	}
 	return !isLastPage, nextPageStart
 }