diff --git a/jdk/src/share/native/sun/security/pkcs11/wrapper/p11_convert.c b/jdk/src/share/native/sun/security/pkcs11/wrapper/p11_convert.c
index 34080238b1b..82cb5af82c0 100644
--- a/jdk/src/share/native/sun/security/pkcs11/wrapper/p11_convert.c
+++ b/jdk/src/share/native/sun/security/pkcs11/wrapper/p11_convert.c
@@ -374,7 +374,7 @@ CK_DATE * jDateObjectPtrToCKDatePtr(JNIEnv *env, jobject jDate)
             return NULL;
         }
 
-        for (i = 0; (i < ckLength) && (i < 4) ; i++) {
+        for (i = 0; (i < ckLength) && (i < 2) ; i++) {
             ckpDate->month[i] = jCharToCKChar(jTempChars[i]);
         }
         free(jTempChars);
@@ -398,7 +398,7 @@ CK_DATE * jDateObjectPtrToCKDatePtr(JNIEnv *env, jobject jDate)
             return NULL;
         }
 
-        for (i = 0; (i < ckLength) && (i < 4) ; i++) {
+        for (i = 0; (i < ckLength) && (i < 2) ; i++) {
             ckpDate->day[i] = jCharToCKChar(jTempChars[i]);
         }
         free(jTempChars);