diff --git a/Zend/tests/fibers/gh19983.phpt b/Zend/tests/fibers/gh19983.phpt
new file mode 100644
index 0000000000000..156edc3918151
--- /dev/null
+++ b/Zend/tests/fibers/gh19983.phpt
@@ -0,0 +1,29 @@
+--TEST--
+GH-19983 (GC Assertion Failure with fibers, generators and destructors)
+--SKIPIF--
+<?php if (PHP_INT_SIZE < 8) die("skip 64-bit only - fiber stacks exhaust 32-bit address space"); ?>
+--INI--
+memory_limit=128M
+--FILE--
+<?php
+class a
+{
+    function __destruct()
+    {
+        $gen = (function () {
+            $from = (function () {
+                $cv = [new a];
+                Fiber::suspend();
+            })();
+            yield from $from;
+        })();
+        $fiber = new Fiber(function () use ($gen, &$fiber) {
+            $gen->current();
+        });
+        $fiber->start();
+    }
+}
+new a;
+?>
+--EXPECTF--
+Fatal error: Allowed memory size of %d bytes exhausted%s
diff --git a/Zend/zend_gc.c b/Zend/zend_gc.c
index 7b2ff49a73632..ffd427eac5bc0 100644
--- a/Zend/zend_gc.c
+++ b/Zend/zend_gc.c
@@ -1893,13 +1893,15 @@ static zend_never_inline void gc_call_destructors_in_fiber(uint32_t end)
 	GC_G(dtor_idx) = GC_FIRST_ROOT;
 	GC_G(dtor_end) = GC_G(first_unused);
 
+	zend_object *exception = NULL;
+	remember_prev_exception(&exception);
+
 	if (UNEXPECTED(!fiber)) {
 		fiber = gc_create_destructor_fiber();
 	} else {
 		zend_fiber_resume(fiber, NULL, NULL);
 	}
 
-	zend_object *exception = NULL;
 	remember_prev_exception(&exception);
 
 	for (;;) {