diff --git a/README.md b/README.md
index a21d827..7cff58d 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Tools & Libraries for NX (Nintendo Switch).
 
 # Tools
 
-* __nstool__ - read *.npdm, read/extract PartitionFS (PFS0|HFS0) blobs (including *.nsp), read/extract *.xci, read/extract *.nca, read *.cnmt
+* __nstool__ - read *.npdm, read/extract PartitionFS (PFS0|HFS0) blobs (including *.nsp), read/extract *.xci, read/extract *.nca, read *.cnmt, read *.nso
 
 # Libraries
 
diff --git a/programs/nstool/source/UserSettings.cpp b/programs/nstool/source/UserSettings.cpp
index 8b00be9..7fc07e4 100644
--- a/programs/nstool/source/UserSettings.cpp
+++ b/programs/nstool/source/UserSettings.cpp
@@ -39,7 +39,7 @@ void UserSettings::showHelp()
 	printf("\n  General Options:\n");
 	printf("      -d, --dev       Use devkit keyset\n");
 	printf("      -k, --keyset    Specify keyset file\n");
-	printf("      -t, --type      Specify input file type [xci, pfs, romfs, nca, npdm, cnmt]\n");
+	printf("      -t, --type      Specify input file type [xci, pfs, romfs, nca, npdm, cnmt, nso]\n");
 	printf("      -y, --verify    Verify file\n");
 	printf("      -v, --verbose   Verbose output\n");
 	printf("      -q, --quiet     Minimal output\n");
@@ -580,6 +580,8 @@ FileType UserSettings::getFileTypeFromString(const std::string& type_str)
 		type = FILE_NPDM;
 	else if (str == "cnmt")
 		type = FILE_CNMT;
+	else if (str == "nso")
+		type = FILE_NSO;
 	else
 		type = FILE_INVALID;