diff --git a/src/examples/video-src-alloc.c b/src/examples/video-src-alloc.c
index 2b8e6f0a1..a06649581 100644
--- a/src/examples/video-src-alloc.c
+++ b/src/examples/video-src-alloc.c
@@ -223,7 +223,7 @@ static void on_stream_add_buffer(void *_data, struct pw_buffer *buffer)
 
 	/* create the memfd on the buffer, set the type and flags */
 	d[0].type = SPA_DATA_MemFd;
-	d[0].flags = SPA_DATA_FLAG_READWRITE;
+	d[0].flags = SPA_DATA_FLAG_READWRITE | SPA_DATA_FLAG_MAPPABLE;
 #ifdef HAVE_MEMFD_CREATE
 	d[0].fd = memfd_create("video-src-memfd", MFD_CLOEXEC | MFD_ALLOW_SEALING);
 #else
diff --git a/src/examples/video-src-fixate.c b/src/examples/video-src-fixate.c
index a465a0bc7..260234db4 100644
--- a/src/examples/video-src-fixate.c
+++ b/src/examples/video-src-fixate.c
@@ -308,7 +308,7 @@ static void on_stream_add_buffer(void *_data, struct pw_buffer *buffer)
 	printf("use memfd\n");
 	/* create the memfd on the buffer, set the type and flags */
 	d[0].type = SPA_DATA_MemFd;
-	d[0].flags = SPA_DATA_FLAG_READWRITE;
+	d[0].flags = SPA_DATA_FLAG_READWRITE | SPA_DATA_FLAG_MAPPABLE;
 #ifdef HAVE_MEMFD_CREATE
 	d[0].fd = memfd_create("video-src-fixate-memfd", MFD_CLOEXEC | MFD_ALLOW_SEALING);
 #else
diff --git a/src/examples/video-src-reneg.c b/src/examples/video-src-reneg.c
index 212932213..8b36987f6 100644
--- a/src/examples/video-src-reneg.c
+++ b/src/examples/video-src-reneg.c
@@ -237,7 +237,7 @@ static void on_stream_add_buffer(void *_data, struct pw_buffer *buffer)
 
 	/* create the memfd on the buffer, set the type and flags */
 	d[0].type = SPA_DATA_MemFd;
-	d[0].flags = SPA_DATA_FLAG_READWRITE;
+	d[0].flags = SPA_DATA_FLAG_READWRITE | SPA_DATA_FLAG_MAPPABLE;
 #ifdef HAVE_MEMFD_CREATE
 	d[0].fd = memfd_create("video-src-memfd", MFD_CLOEXEC | MFD_ALLOW_SEALING);
 #else