diff --git a/nx/include/switch/services/capsc.h b/nx/include/switch/services/capsc.h
index 92621a5f..c348022a 100644
--- a/nx/include/switch/services/capsc.h
+++ b/nx/include/switch/services/capsc.h
@@ -293,20 +293,20 @@ Result capscReadDataFromAlbumMovieWriteStream(u64 stream, u64 offset, void* buff
  * @note Only available on [4.0.0+].
  * @param[in] stream Stream handle.
  * @param[in] offset Offset.
- * @param[out] buffer Input data buffer.
+ * @param[in] buffer Input data buffer.
  * @param[in] size Data buffer size.
  */
-Result capscWriteDataToAlbumMovieWriteStream(u64 stream, u64 offset, void* buffer, u64 size);
+Result capscWriteDataToAlbumMovieWriteStream(u64 stream, u64 offset, const void* buffer, u64 size);
 
 /**
  * @brief Write meta data to an AlbumMovieWriteStream.
  * @note Only available on [4.0.0+].
  * @param[in] stream Stream handle.
  * @param[in] offset Offset.
- * @param[out] buffer Input data buffer.
+ * @param[in] buffer Input data buffer.
  * @param[in] size Data buffer size.
  */
-Result capscWriteMetaToAlbumMovieWriteStream(u64 stream, u64 offset, void* buffer, u64 size);
+Result capscWriteMetaToAlbumMovieWriteStream(u64 stream, u64 offset, const void* buffer, u64 size);
 
 /**
  * @brief Gets the BrokenReason for an AlbumMovieWriteStream.
diff --git a/nx/source/services/capsc.c b/nx/source/services/capsc.c
index 42b77bab..508936f1 100644
--- a/nx/source/services/capsc.c
+++ b/nx/source/services/capsc.c
@@ -293,7 +293,7 @@ Result capscReadDataFromAlbumMovieWriteStream(u64 stream, u64 offset, void* buff
     return _capscControlReadDataFromAlbumMovieStream(stream, offset, buffer, size, actual_size ,2421);
 }
 
-static Result _capscWriteToAlbumMovieWriteStream(u64 stream, u64 offset, void* buffer, u64 size, u32 cmd_id) {
+static Result _capscWriteToAlbumMovieWriteStream(u64 stream, u64 offset, const void* buffer, u64 size, u32 cmd_id) {
     if (hosversionBefore(4,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
     if (!serviceIsActive(&g_capscControl))
@@ -308,11 +308,11 @@ static Result _capscWriteToAlbumMovieWriteStream(u64 stream, u64 offset, void* b
     );
 }
 
-Result capscWriteDataToAlbumMovieWriteStream(u64 stream, u64 offset, void* buffer, u64 size) {
+Result capscWriteDataToAlbumMovieWriteStream(u64 stream, u64 offset, const void* buffer, u64 size) {
     return _capscWriteToAlbumMovieWriteStream(stream, offset, buffer, size, 2422);
 }
 
-Result capscWriteMetaToAlbumMovieWriteStream(u64 stream, u64 offset, void* buffer, u64 size) {
+Result capscWriteMetaToAlbumMovieWriteStream(u64 stream, u64 offset, const void* buffer, u64 size) {
     return _capscWriteToAlbumMovieWriteStream(stream, offset, buffer, size, 2424);
 }