diff --git a/include/freerdp/error.h b/include/freerdp/error.h
old mode 100644
new mode 100755
index 628e1e3b9..3c00b5c13
--- a/include/freerdp/error.h
+++ b/include/freerdp/error.h
@@ -142,7 +142,7 @@ FREERDP_API const char* freerdp_get_error_info_name(UINT32 code);
 * The value can hold one of the defined error codes below OR an error according to errno
 */
 
-extern int connectErrorCode;
+FREERDP_API extern int connectErrorCode;
 
 #define ERRORSTART 10000
 #define PREECONNECTERROR ERRORSTART + 1