diff --git a/appsec/tests/extension/client_init_record_span_tags.phpt b/appsec/tests/extension/client_init_record_span_tags.phpt
index 60f08e21ce..0e345b23a7 100644
--- a/appsec/tests/extension/client_init_record_span_tags.phpt
+++ b/appsec/tests/extension/client_init_record_span_tags.phpt
@@ -86,7 +86,7 @@ Array
 (
     [_dd.appsec.json] => {"triggers":[{"found":"attack"},{"another":"attack"},{"yet another":"attack"}]}
     [_dd.p.appsec] => 1
-    [_dd.p.dm] => -5
+    [_dd.p.dm] => -0
     [_dd.p.tid] => %s
     [_dd.runtime_family] => php
     [appsec.event] => true
@@ -107,7 +107,8 @@ Array
     [metric_1] => 2
     [metric_2] => 10
     [_dd.appsec.enabled] => 1
-    [_sampling_priority_v1] => 2
+    [_dd.agent_psr] => 1
+    [_sampling_priority_v1] => 1
     [php.compilation.total_time_ms] => %f
     [php.memory.peak_usage_bytes] => %f
     [php.memory.peak_real_usage_bytes] => %f
diff --git a/appsec/tests/extension/rinit_record_span_tags.phpt b/appsec/tests/extension/rinit_record_span_tags.phpt
index 44826d6f8c..97b2d2c8e6 100644
--- a/appsec/tests/extension/rinit_record_span_tags.phpt
+++ b/appsec/tests/extension/rinit_record_span_tags.phpt
@@ -81,7 +81,7 @@ Array
 (
     [_dd.appsec.json] => {"triggers":[{"found":"attack"},{"another":"attack"},{"yet another":"attack"}]}
     [_dd.p.appsec] => 1
-    [_dd.p.dm] => -5
+    [_dd.p.dm] => -0
     [_dd.p.tid] => %s
     [_dd.runtime_family] => php
     [appsec.event] => true
@@ -100,7 +100,8 @@ Array
     [%s] => %d
     [rshutdown_metric] => 2.1
     [_dd.appsec.enabled] => 1
-    [_sampling_priority_v1] => 2
+    [_dd.agent_psr] => 1
+    [_sampling_priority_v1] => 1
     [php.compilation.total_time_ms] => %f
     [php.memory.peak_usage_bytes] => %f
     [php.memory.peak_real_usage_bytes] => %f
diff --git a/ext/asm_event.c b/ext/asm_event.c
index d729a285b5..7818cb077c 100644
--- a/ext/asm_event.c
+++ b/ext/asm_event.c
@@ -1,4 +1,6 @@
 #include "asm_event.h"
+
+#include "configuration.h"
 #include "ddtrace.h"
 #include "priority_sampling/priority_sampling.h"
 #include "tracer_tag_propagation/tracer_tag_propagation.h"
@@ -24,7 +26,9 @@ DDTRACE_PUBLIC void ddtrace_emit_asm_event() {
     ZVAL_STR(&_1_zval, _1_zstr);
     ddtrace_add_propagated_tag(_dd_tag_p_appsec_zstr, &_1_zval);
 
-    ddtrace_set_priority_sampling_on_root(PRIORITY_SAMPLING_USER_KEEP, DD_MECHANISM_ASM);
+    if (get_DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED()) {
+        ddtrace_set_priority_sampling_on_root(PRIORITY_SAMPLING_USER_KEEP, DD_MECHANISM_ASM);
+    }
 }
 
 PHP_FUNCTION(DDTrace_Testing_emit_asm_event) {
diff --git a/tests/ext/integrations/curl/distributed_tracing_curl_propagate_asm_event.phpt b/tests/ext/integrations/curl/distributed_tracing_curl_propagate_asm_event.phpt
index b354b00185..8d90dbae6c 100644
--- a/tests/ext/integrations/curl/distributed_tracing_curl_propagate_asm_event.phpt
+++ b/tests/ext/integrations/curl/distributed_tracing_curl_propagate_asm_event.phpt
@@ -6,6 +6,7 @@ Distributed tracing header tags propagate asm events with curl_exec()
 --ENV--
 DD_TRACE_TRACED_INTERNAL_FUNCTIONS=curl_exec
 HTTP_X_DATADOG_TRACE_ID=42
+DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED=1
 --FILE--
 <?php