diff --git a/src/launcher/launcher.c b/src/launcher/launcher.c
index a2cfb58a..fd9194db 100644
--- a/src/launcher/launcher.c
+++ b/src/launcher/launcher.c
@@ -232,6 +232,8 @@ NTSTATUS SvcInstanceCreate(HANDLE ClientToken,
         goto exit;
     }
 
+    FspDebugLogSD(__FUNCTION__ ": SDDL = %s", SecurityDescriptor);
+
     Result = SvcInstanceAccessCheck(ClientToken, SERVICE_START, SecurityDescriptor);
     if (!NT_SUCCESS(Result))
         goto exit;
@@ -460,6 +462,8 @@ static NTSTATUS SvcStart(FSP_SERVICE *Service, ULONG argc, PWSTR *argv)
         &SecurityAttributes.lpSecurityDescriptor, 0))
         goto fail;
 
+    FspDebugLogSD(__FUNCTION__ ": SDDL = %s", SecurityAttributes.lpSecurityDescriptor);
+
     SvcEvent = CreateEventW(0, TRUE, FALSE, 0);
     if (0 == SvcEvent)
         goto fail;
diff --git a/src/launcher/launcher.h b/src/launcher/launcher.h
index 919da6ad..f62a903b 100644
--- a/src/launcher/launcher.h
+++ b/src/launcher/launcher.h
@@ -27,22 +27,22 @@
 
 /*
  * The launcher named pipe SDDL gives full access to LocalSystem and Administrators.
- * It also gives generic read access and FILE_WRITE_DATA (SC) to Everyone. Note that
+ * It also gives generic read access and FILE_WRITE_DATA (DC) to Everyone. Note that
  * we cannot give generic write access or equivalently FILE_GENERIC_WRITE (FW) because
  * we would also grant the FILE_CREATE_PIPE_INSTANCE right.
  */
-#define PIPE_SDDL                       "D:P(A;;GA;;;SY)(A;;GA;;;BA)(A;;GRSC;;;WD)"
+#define PIPE_SDDL                       "D:P(A;;GA;;;SY)(A;;GA;;;BA)(A;;GRDC;;;WD)"
 
  /*
  * The default service instance SDDL gives full access to LocalSystem and Administrators.
  * The only possible service instance rights are as follows:
  *     RP   SERVICE_START
  *     WP   SERVICE_STOP
- *     SC   SERVICE_QUERY_STATUS
+ *     LC   SERVICE_QUERY_STATUS
  *
  * To create a service that can be started, stopped or queried by Everyone, you can set
  * the following SDDL:
- *     D:P(A;;RPWPSC;;;WD)
+ *     D:P(A;;RPWPLC;;;WD)
  */
 #define SVC_INSTANCE_DEFAULT_SDDL       "O:SYG:SYD:P(A;;RPWPSC;;;SY)(A;;RPWPSC;;;BA)"