diff --git a/src/Pgsql_Result.cpp b/src/Pgsql_Result.cpp
index 800386b..c8c9168 100644
--- a/src/Pgsql_Result.cpp
+++ b/src/Pgsql_Result.cpp
@@ -126,7 +126,7 @@ int Result::tuplesAffected() const
 {
 	int i;
 	char * res = PQcmdTuples(result);
-	if (res) {
+	if (res && res[0] != '\0') {
 		try {
 			i = std::stoi(res);
 		}