1 files changed, 1 insertions, 1 deletions
diff --git a/op.h b/op.h
index 4ad2a2bcfc..a5cd625e28 100644
--- a/op.h
+++ b/op.h
@@ -45,7 +45,7 @@
 #  define MADPROP_IN_BASEOP
 #endif
 
-typedef PERL_BITFIELD16 optype;
+typedef PERL_BITFIELD16 Optype;
 
 #ifdef BASEOP_DEFINITION
 #define BASEOP BASEOP_DEFINITION