diff --git a/recovery.cpp b/recovery.cpp
index b8fc45f..b1333ea 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -893,8 +893,15 @@
 
 #ifdef TW_INCLUDE_INJECTTWRP
 	// Back up TWRP Ramdisk if needed:
+	TWPartition* Boot = PartitionManager.Find_Partition_By_Path("/boot");
+
 	LOGI("Backing up TWRP ramdisk...\n");
-	system("injecttwrp --backup /tmp/backup_recovery_ramdisk.img");
+	if (Boot == NULL || Boot->Current_File_System != "emmc")
+		system("injecttwrp --backup /tmp/backup_recovery_ramdisk.img");
+	else {
+		string injectcmd = "injecttwrp --backup /tmp/backup_recovery_ramdisk.img bd=" + Boot->Actual_Block_Device;
+		system(injectcmd.c_str());
+	}
 	LOGI("Backup of TWRP ramdisk done.\n");
 #endif