diff --git a/src/emulate.c b/src/emulate.c
index f72f5d5..0f58676 100644
--- a/src/emulate.c
+++ b/src/emulate.c
@@ -695,7 +695,7 @@ decode_group_1()
   }
 }
 
-inline int
+static inline int
 #ifdef __FunctionProto__
 decode_8_thru_f(int op1)
 #else