diff --git a/nx/include/switch/services/capsc.h b/nx/include/switch/services/capsc.h
index c348022a0..d44f0c89d 100644
--- a/nx/include/switch/services/capsc.h
+++ b/nx/include/switch/services/capsc.h
@@ -9,6 +9,13 @@
 #include "../sf/service.h"
 #include "../services/caps.h"
 
+typedef struct {
+    u64 application_id;
+    u8 unknown_08;
+    u8 unknown_09;
+    u8 reserved[6];
+} CapsApplicationId;
+
 /// Initialize caps:c
 Result capscInitialize(void);
 
@@ -40,7 +47,7 @@ Result capscNotifyAlbumStorageIsUnAvailable(CapsAlbumStorage storage);
  * @param[in] appletResourceUserId AppletResourceUserId.
  * @param[in] application_id ApplicationId.
  */
-Result capscRegisterAppletResourceUserId(u64 appletResourceUserId, u64 application_id);
+Result capscRegisterAppletResourceUserId(u64 appletResourceUserId, const CapsApplicationId *application_id);
 
 /**
  * @brief Unregister an applet.
@@ -49,7 +56,7 @@ Result capscRegisterAppletResourceUserId(u64 appletResourceUserId, u64 applicati
  * @param[in] appletResourceUserId AppletResourceUserId.
  * @param[in] application_id ApplicationId.
  */
-Result capscUnregisterAppletResourceUserId(u64 appletResourceUserId, u64 application_id);
+Result capscUnregisterAppletResourceUserId(u64 appletResourceUserId, const CapsApplicationId *application_id);
 
 /**
  * @brief Get an ApplicationId that corresponds to an AppletResourceUserId.
@@ -58,7 +65,7 @@ Result capscUnregisterAppletResourceUserId(u64 appletResourceUserId, u64 applica
  * @param[out] application_id ApplicationId.
  * @param[in] appletResourceUserId AppletResourceUserId.
  */
-Result capscGetApplicationIdFromAruid(u64 *application_id, u64 aruid);
+Result capscGetApplicationIdFromAruid(CapsApplicationId *application_id, u64 aruid);
 
 /**
  * @brief Checks whether an ApplicationId is registered.
@@ -74,7 +81,7 @@ Result capscCheckApplicationIdRegistered(u64 application_id);
  * @param[in] contents \ref CapsAlbumFileContents
  * @param[out] file_id \ref CapsAlbumFileId
  */
-Result capscGenerateCurrentAlbumFileId(u64 application_id, CapsAlbumFileContents contents, CapsAlbumFileId *file_id);
+Result capscGenerateCurrentAlbumFileId(const CapsApplicationId *application_id, CapsAlbumFileContents contents, CapsAlbumFileId *file_id);
 
 /**
  * @brief Generate an ApplicationAlbumEntry based on parameters.
diff --git a/nx/source/services/capsc.c b/nx/source/services/capsc.c
index 062e49fe7..1f49d3814 100644
--- a/nx/source/services/capsc.c
+++ b/nx/source/services/capsc.c
@@ -54,30 +54,38 @@ Result capscNotifyAlbumStorageIsUnAvailable(CapsAlbumStorage storage) {
     return _capscCmdInU8NoOut(&g_capscSrv, 2002, storage);
 }
 
-Result capscRegisterAppletResourceUserId(u64 appletResourceUserId, u64 application_id) {
+Result capscRegisterAppletResourceUserId(u64 appletResourceUserId, const CapsApplicationId *application_id) {
     if (hosversionBefore(2,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
     const struct {
         u64 appletResourceUserId;
-        u64 applicationId;
-    } in = { appletResourceUserId, application_id };
+        CapsApplicationId applicationId;
+    } in = { appletResourceUserId, *application_id };
     return serviceDispatchIn(&g_capscSrv, 2011, in);
 }
 
-Result capscUnregisterAppletResourceUserId(u64 appletResourceUserId, u64 application_id) {
+Result capscUnregisterAppletResourceUserId(u64 appletResourceUserId, const CapsApplicationId *application_id) {
     if (hosversionBefore(2,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
     const struct {
         u64 appletResourceUserId;
-        u64 applicationId;
-    } in = { appletResourceUserId, application_id };
+        CapsApplicationId applicationId;
+    } in = { appletResourceUserId, *application_id };
     return serviceDispatchIn(&g_capscSrv, 2012, in);
 }
 
-Result capscGetApplicationIdFromAruid(u64 *application_id, u64 aruid) {
+Result capscGetApplicationIdFromAruid(CapsApplicationId *application_id, u64 aruid) {
     if (hosversionBefore(2,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
-    return serviceDispatchInOut(&g_capscSrv, 2013, aruid, *application_id);
+
+    if (hosversionAtLeast(19,0,0))
+        return serviceDispatchInOut(&g_capscSrv, 2013, aruid, *application_id);
+
+    u64 old_application_id=0;
+    Result rc = serviceDispatchInOut(&g_capscSrv, 2013, aruid, old_application_id);
+    if (R_SUCCEEDED(rc))
+        *application_id = (CapsApplicationId){ old_application_id, 0, 0 };
+    return rc;
 }
 
 Result capscCheckApplicationIdRegistered(u64 application_id) {
@@ -86,13 +94,13 @@ Result capscCheckApplicationIdRegistered(u64 application_id) {
     return serviceDispatchIn(&g_capscSrv, 2014, application_id);
 }
 
-Result capscGenerateCurrentAlbumFileId(u64 application_id, CapsAlbumFileContents contents, CapsAlbumFileId *file_id) {
+Result capscGenerateCurrentAlbumFileId(const CapsApplicationId *application_id, CapsAlbumFileContents contents, CapsAlbumFileId *file_id) {
     if (hosversionBefore(2,0,0))
         return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
     const struct {
         u8 type;
-        u64 applicationId;
-    } in = { contents, application_id };
+        CapsApplicationId applicationId;
+    } in = { contents, *application_id };
     return serviceDispatchInOut(&g_capscSrv, 2101, in, *file_id);
 }