diff --git a/ext/opcache/Optimizer/zend_optimizer.c b/ext/opcache/Optimizer/zend_optimizer.c
index c88821e0e3e..b6506e01756 100644
--- a/ext/opcache/Optimizer/zend_optimizer.c
+++ b/ext/opcache/Optimizer/zend_optimizer.c
@@ -200,6 +200,11 @@ int zend_optimizer_update_op1_const(zend_op_array *op_array,
 		case ZEND_SEND_VAR_NO_REF_EX:
 			zval_ptr_dtor(val);
 			return 0;
+		case ZEND_VERIFY_RETURN_TYPE:
+			/* This would require a non-local change.
+			 * zend_optimizer_replace_by_const() supports this. */
+			zval_ptr_dtor(val);
+			return 0;
 		case ZEND_CONCAT:
 		case ZEND_FAST_CONCAT:
 		case ZEND_FETCH_R:
diff --git a/ext/opcache/tests/bug73654.phpt b/ext/opcache/tests/bug73654.phpt
new file mode 100644
index 00000000000..164e10829c1
--- /dev/null
+++ b/ext/opcache/tests/bug73654.phpt
@@ -0,0 +1,17 @@
+--TEST--
+Bug #73654: Segmentation fault in zend_call_function
+--FILE--
+<?php
+echo xyz();
+
+function x () : string {
+    return 'x';
+}
+
+function xyz() : string {
+    return x().'yz';
+}
+
+?>
+--EXPECT--
+xyz