diff --git a/src/backend/storage/ipc/dsm_impl.c b/src/backend/storage/ipc/dsm_impl.c
index 921f029..55335bf 100644
--- a/src/backend/storage/ipc/dsm_impl.c
+++ b/src/backend/storage/ipc/dsm_impl.c
@@ -68,6 +68,7 @@
 #include "utils/guc.h"
 #include "utils/memutils.h"
 #include "postmaster/postmaster.h"
+#include "miscadmin.h"
 
 #ifdef USE_DSM_POSIX
 static bool dsm_impl_posix(dsm_op op, dsm_handle handle, Size request_size,
@@ -631,7 +632,7 @@ dsm_impl_windows(dsm_op op, dsm_handle handle, Size request_size,
 	 * similar to main shared memory. We can change here once issue mentioned
 	 * in GetSharedMemName is resolved.
 	 */
-	snprintf(name, 64, "%s.%u", SEGMENT_NAME_PREFIX, handle);
+	snprintf(name, 64, "%s.%d.%u", SEGMENT_NAME_PREFIX, PostmasterPid, handle);
 
 	/*
 	 * Handle teardown cases.  Since Windows automatically destroys the object