diff --git a/eyelinkio/edf/read_edf.py b/eyelinkio/edf/read_edf.py
index 9b5bd7c..aca3c26 100644
--- a/eyelinkio/edf/read_edf.py
+++ b/eyelinkio/edf/read_edf.py
@@ -32,7 +32,7 @@
         edf_get_preamble_text_length,
         edf_get_version,
         edf_get_float_data,
-    ) = [None] * 8
+    ) = [None] * 7
     has_edfapi = False
     why_not = str(exp)