diff --git a/src/mbyte.c b/src/mbyte.c
index fe12c57..ed12e76 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -613,7 +613,7 @@
     enc_dbcs = enc_dbcs_new;
     has_mbyte = (enc_dbcs != 0 || enc_utf8);
 
-#ifdef WIN3264
+#if defined(WIN3264) || defined(FEAT_CYGWIN_WIN32_CLIPBOARD)
     enc_codepage = encname2codepage(p_enc);
     enc_latin9 = (STRCMP(p_enc, "iso-8859-15") == 0);
 #endif
@@ -4089,7 +4089,7 @@
     return enc_canonize((char_u *)buf);
 }
 
-#if defined(WIN3264) || defined(PROTO)
+#if defined(WIN3264) || defined(PROTO) || defined(FEAT_CYGWIN_WIN32_CLIPBOARD)
 /*
  * Convert an encoding name to an MS-Windows codepage.
  * Returns zero if no codepage can be figured out.