diff --git a/src/libdt.c b/src/libdt.c
index c4376d0..853259f 100644
--- a/src/libdt.c
+++ b/src/libdt.c
@@ -94,7 +94,7 @@
 		while (j < len) {
 			if (j > 0)
 				printf("\", \"");
-			printf("%s", data);
+			printf("%s", (const char *)data);
 			j    += strlen(data) + 1;
 			data += strlen(data) + 1;
 		}