diff --git a/m-dict.h b/m-dict.h
index e1f4405e..4808b0b6 100644
--- a/m-dict.h
+++ b/m-dict.h
@@ -1169,7 +1169,7 @@
 /* Open Addressing implementation */
 /****************************************************************************************/
 
-enum M_D1CT_oa_element_e {
+enum m_d1ct_oa_element_e {
   M_D1CT_OA_EMPTY = 0, M_D1CT_OA_DELETED = 1
 };