diff --git a/Zend/Optimizer/zend_inference.c b/Zend/Optimizer/zend_inference.c
index f60f1f09a4b..759284f1045 100644
--- a/Zend/Optimizer/zend_inference.c
+++ b/Zend/Optimizer/zend_inference.c
@@ -5130,9 +5130,9 @@ ZEND_API bool zend_may_throw_ex(const zend_op *opline, const zend_ssa_op *ssa_op
 		case ZEND_FETCH_IS:
 			return (t2 & (MAY_BE_ARRAY|MAY_BE_OBJECT));
 		case ZEND_ISSET_ISEMPTY_DIM_OBJ:
-			return (t1 & MAY_BE_OBJECT) || (t2 & (MAY_BE_ARRAY|MAY_BE_OBJECT));
+			return (t1 & MAY_BE_OBJECT) || (t2 & (MAY_BE_DOUBLE|MAY_BE_ARRAY|MAY_BE_OBJECT));
 		case ZEND_FETCH_DIM_IS:
-			return (t1 & MAY_BE_OBJECT) || (t2 & (MAY_BE_ARRAY|MAY_BE_OBJECT|MAY_BE_RESOURCE));
+			return (t1 & MAY_BE_OBJECT) || (t2 & (MAY_BE_DOUBLE|MAY_BE_ARRAY|MAY_BE_OBJECT|MAY_BE_RESOURCE));
 		case ZEND_CAST:
 			switch (opline->extended_value) {
 				case IS_LONG: