diff --git a/os/chartypes.c b/os/chartypes.c
index d827040c0..c46847a68 100644
--- a/os/chartypes.c
+++ b/os/chartypes.c
@@ -132,7 +132,7 @@ static encoding_t enc_os_default( encoding_t rc)\
 
   if (rc == ENC_ISO_ASCII) {
 #ifdef _WIN32
-      return = ENC_UTF16_BE;
+      return ENC_UTF16_BE;
 #else
       return ENC_ISO_UTF8;
 #endif