Index: cackey.c
==================================================================
--- cackey.c
+++ cackey.c
@@ -2535,11 +2535,11 @@
 				break;
 			case CKA_LABEL:
 				CACKEY_DEBUG_PRINTF("Requesting attribute CKA_LABEL (0x%08lx) ...", (unsigned long) curr_attr_type);
 
 				/* XXX: Determine name */
-				ulValueLen = snprintf(ucTmpBuf, sizeof(ucTmpBuf), "Identity #%lu", (unsigned long) identity_num);
+				ulValueLen = snprintf((char *) ucTmpBuf, sizeof(ucTmpBuf), "Identity #%lu", (unsigned long) identity_num);
 				pValue = ucTmpBuf;
 
 				if (ulValueLen >= sizeof(ucTmpBuf)) {
 					ulValueLen = 0;
 					pValue = NULL;