diff --git a/modules/flann/include/opencv2/flann/saving.h b/modules/flann/include/opencv2/flann/saving.h
index 5a1731109..bc75eb509 100644
--- a/modules/flann/include/opencv2/flann/saving.h
+++ b/modules/flann/include/opencv2/flann/saving.h
@@ -97,7 +97,7 @@ CV_EXPORTS IndexHeader load_header(FILE* stream);
 template<typename T>
 void save_value(FILE* stream, const T& value, int count = 1)
 {
-	fwrite(&value, sizeof(value),count, stream);
+	fwrite(&value, 1, sizeof(value)*count, stream);
 }