1 files changed, 1 insertions, 2 deletions
diff --git a/sapi/phpdbg/phpdbg.stub.php b/sapi/phpdbg/phpdbg.stub.php
index cf6575de20..bcccc5f9d0 100644
--- a/sapi/phpdbg/phpdbg.stub.php
+++ b/sapi/phpdbg/phpdbg.stub.php
@@ -12,8 +12,7 @@ function phpdbg_color(int $element, string $color): void {}
 
 function phpdbg_prompt(string $string): void {}
 
-/** @return string|bool */
-function phpdbg_exec(string $context) {}
+function phpdbg_exec(string $context): string|bool {}
 
 function phpdbg_clear(): void {}