1 files changed, 3 insertions, 2 deletions
diff --git a/pkgs/development/php-packages/datadog_trace/default.nix b/pkgs/development/php-packages/datadog_trace/default.nix
index 9b91d85fefe5f..4138be3f06511 100644
--- a/pkgs/development/php-packages/datadog_trace/default.nix
+++ b/pkgs/development/php-packages/datadog_trace/default.nix
@@ -1,4 +1,4 @@
-{ buildPecl, curl, fetchFromGitHub, lib, pcre2 }:
+{ buildPecl, curl, fetchFromGitHub, lib, pcre2, php }:
 
 buildPecl rec {
   pname = "ddtrace";
@@ -7,13 +7,14 @@ buildPecl rec {
   src = fetchFromGitHub {
     owner = "DataDog";
     repo = "dd-trace-php";
-    rev = "${version}";
+    rev = version;
     sha256 = "sha256-AYRBzE0Detg/IHXYutZUfPRMtfthxdkSjqD0M+VcTpY=";
   };
 
   buildInputs = [ curl pcre2 ];
 
   meta = with lib; {
+    broken = lib.versionOlder php.version "8.1"; # Broken on PHP older than 8.1.
     description = "Datadog Tracing PHP Client";
     homepage = "https://github.com/DataDog/dd-trace-php";
     license = licenses.apsl20;