diff --git a/src/interfaces/ecpg/ecpglib/execute.c b/src/interfaces/ecpg/ecpglib/execute.c
index 0c4e0cc730c..181fac13e05 100644
--- a/src/interfaces/ecpg/ecpglib/execute.c
+++ b/src/interfaces/ecpg/ecpglib/execute.c
@@ -1492,6 +1492,7 @@ ECPGdo(const int lineno, const int compat, const int force_indicator, const char
 	if (statement_type == ECPGst_prepnormal)
 	{
 		if (!ecpg_auto_prepare(lineno, connection_name, compat, questionmarks, &prepname, query))
+		{
 			setlocale(LC_NUMERIC, oldlocale);
 			ecpg_free(oldlocale);
 			va_end(args);