diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp
index 362d9cb..4d1ce5b 100644
--- a/bootloader_message/bootloader_message.cpp
+++ b/bootloader_message/bootloader_message.cpp
@@ -39,7 +39,7 @@
 
 static std::string misc_blkdev;
 
-void set_misc_device(const char* type, const char* name) {
+void set_misc_device(std::string name) {
     misc_blkdev = name;
 }
 
diff --git a/bootloader_message/include/bootloader_message/bootloader_message.h b/bootloader_message/include/bootloader_message/bootloader_message.h
index b4d3604..52d7331 100644
--- a/bootloader_message/include/bootloader_message/bootloader_message.h
+++ b/bootloader_message/include/bootloader_message/bootloader_message.h
@@ -86,7 +86,7 @@
 bool read_wipe_package(std::string* package_data, size_t size, std::string* err);
 bool write_wipe_package(const std::string& package_data, std::string* err);
 
-void set_misc_device(const char* type, const char* name);
+void set_misc_device(std::string name);
 void get_args(int *argc, char ***argv);
 
 #else
diff --git a/twrp.cpp b/twrp.cpp
index ff40eb1..88df452 100644
--- a/twrp.cpp
+++ b/twrp.cpp
@@ -176,11 +176,9 @@
 		TWPartition* misc = PartitionManager.Find_Partition_By_Path("/misc");
 		if (misc != NULL) {
 			if (misc->Current_File_System == "emmc") {
-				set_misc_device("emmc", misc->Actual_Block_Device.c_str());
-			} else if (misc->Current_File_System == "mtd") {
-				set_misc_device("mtd", misc->MTD_Name.c_str());
+				set_misc_device(misc->Actual_Block_Device);
 			} else {
-				LOGERR("Unknown file system for /misc\n");
+				LOGERR("Only emmc /misc is supported\n");
 			}
 		}
 		get_args(&argc, &argv);