diff --git a/testHTML.c b/testHTML.c
index ce780ce..e0e5d3d 100644
--- a/testHTML.c
+++ b/testHTML.c
@@ -376,7 +376,7 @@
 		    outlen = sizeof output - 1;
 		    htmlEncodeEntities(output, &outlen, att, &attlen, '\'');
 		    output[outlen] = 0;
-		    fprintf(stdout, "%s", output);
+		    fprintf(stdout, "%s", (char *) output);
 		    att += attlen;
 		}
 		fprintf(stdout, "'");