diff --git a/src/pypulseq/Sequence/read_seq.py b/src/pypulseq/Sequence/read_seq.py
index 7964e9d8..1478a9bc 100644
--- a/src/pypulseq/Sequence/read_seq.py
+++ b/src/pypulseq/Sequence/read_seq.py
@@ -97,7 +97,7 @@ def read(self, path: str, detect_rf_use: Union[bool, None] = None, remove_duplic
                 self.signature_type = temp_sign_defs['Type']
             if 'Hash' in temp_sign_defs:
                 self.signature_value = temp_sign_defs['Hash']
-                self.signature_file = 'Text'
+                self.signature_file = 'text'
         elif section == '[VERSION]':
             file_version_major, file_version_minor, file_version_revision = __read_version(input_file)
             file_version_combined = 1000000 * file_version_major + 1000 * file_version_minor + file_version_revision
diff --git a/tests/test_sequence.py b/tests/test_sequence.py
index 2902e2d5..14cd0dc9 100644
--- a/tests/test_sequence.py
+++ b/tests/test_sequence.py
@@ -489,6 +489,10 @@ def test_writeread(self, seq_func, tmp_path, compare_seq_file):
         # Clean up written sequence file
         output_filename.unlink()
 
+        # Test that the signature is described in the same way after write and after read
+        assert seq.signature_file == 'text'
+        assert (seq2.signature_type, seq2.signature_file) == (seq.signature_type, seq.signature_file)
+
         # Test for approximate equality of all blocks
         assert list(seq2.block_events.keys()) == list(seq.block_events.keys()), 'Sequence block IDs are not identical'
         for block_counter in seq.block_events: