diff --git a/omim2obo/main.py b/omim2obo/main.py
index 773c7b8..1bba08e 100644
--- a/omim2obo/main.py
+++ b/omim2obo/main.py
@@ -220,7 +220,7 @@ def omim2obo(use_cache: bool = False):
             graph.add((axiom, OWL.annotatedSource, omim_uri))
             graph.add((axiom, OWL.annotatedProperty, oboInOwl.hasExactSynonym))
             graph.add((axiom, OWL.annotatedTarget, Literal(abbreviation)))
-            graph.add((axiom, OBOINOWL.hasSynonymType, OMO['0003012']))
+            graph.add((axiom, OBOINOWL.hasSynonymType, OMO['0003000']))
 
         # Add 'included' entry properties
         included_detected_comment = "This term has one or more labels that end with ', INCLUDED'."