diff --git a/C/write.c b/C/write.c
index 0a4a1fb97..b84b0a14d 100644
--- a/C/write.c
+++ b/C/write.c
@@ -571,9 +571,10 @@ static void write_string(const unsigned char *s,
 
     if (chr == '\0') {
       break;
+    }
     if (delta == 0) {chr = *ptr++; }
     write_quoted(chr, qt, stream);
-  } while (TRUE);
+  } while (true);
   wrputc(qt, stream);
 }