diff --git a/engines/e_capi_err.c b/engines/e_capi_err.c
index 73bbaaa71..eaaefb261 100644
--- a/engines/e_capi_err.c
+++ b/engines/e_capi_err.c
@@ -122,6 +122,7 @@ static ERR_STRING_DATA CAPI_str_reasons[]=
 {ERR_REASON(CAPI_R_UNSUPPORTED_ALGORITHM_NID),"unsupported algorithm nid"},
 {ERR_REASON(CAPI_R_UNSUPPORTED_PADDING)  ,"unsupported padding"},
 {ERR_REASON(CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM),"unsupported public key algorithm"},
+{ERR_REASON(CAPI_R_WIN32_ERROR)          ,"win32 error"},
 {0,NULL}
 	};
 
diff --git a/engines/e_capi_err.h b/engines/e_capi_err.h
index efdb75125..4c749ec43 100644
--- a/engines/e_capi_err.h
+++ b/engines/e_capi_err.h
@@ -116,6 +116,7 @@ static void ERR_CAPI_error(int function, int reason, char *file, int line);
 #define CAPI_R_UNSUPPORTED_ALGORITHM_NID		 119
 #define CAPI_R_UNSUPPORTED_PADDING			 120
 #define CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM		 121
+#define CAPI_R_WIN32_ERROR				 127
 
 #ifdef  __cplusplus
 }