diff --git a/ctaocrypt/src/error.c b/ctaocrypt/src/error.c
index 449a9b583..d7ed45194 100644
--- a/ctaocrypt/src/error.c
+++ b/ctaocrypt/src/error.c
@@ -335,6 +335,14 @@ void CTaoCryptErrorString(int error, char* buffer)
         XSTRNCPY(buffer, "Setting cert request attributes error", max);
         break;
 
+    case PKCS7_OID_E:
+        XSTRNCPY(buffer, "PKCS#7 error: mismatched OID value", max);
+        break;
+
+    case PKCS7_RECIP_E:
+        XSTRNCPY(buffer, "PKCS#7 error: no matching recipient found", max);
+        break;
+
     default:
         XSTRNCPY(buffer, "unknown error number", max);
 
diff --git a/cyassl/ctaocrypt/error.h b/cyassl/ctaocrypt/error.h
index d99ac3d72..af4d8e9c8 100644
--- a/cyassl/ctaocrypt/error.h
+++ b/cyassl/ctaocrypt/error.h
@@ -119,6 +119,9 @@ enum {
 
     REQ_ATTRIBUTE_E     = -194,  /* setting cert request attributes error */
 
+    PKCS7_OID_E         = -195,  /* PKCS#7, mismatched OID error */
+    PKCS7_RECIP_E       = -196,  /* PKCS#7, recipient error */
+
     MIN_CODE_E         = -200   /* errors -101 - -199 */
 };