diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index e924e8d..0d0efc9 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -2965,7 +2965,7 @@
 		new = PyBytes_FromStringAndSize(NULL, view.len);
 		if (!new)
 			goto fail;
-		// XXX(brett.cannon): Better way to get to internal buffer?
+		/* XXX(brett.cannon): Better way to get to internal buffer? */
 		if (PyBuffer_ToContiguous(((PyBytesObject *)new)->ob_sval,
 					  &view, view.len, 'C') < 0)
 			goto fail;
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 60cd957..0c5c6ef 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -126,19 +126,19 @@
 /* Fast detection of the most frequent whitespace characters */
 const unsigned char _Py_ascii_whitespace[] = {
 	0, 0, 0, 0, 0, 0, 0, 0,
-//     case 0x0009: /* HORIZONTAL TABULATION */
-//     case 0x000A: /* LINE FEED */
-//     case 0x000B: /* VERTICAL TABULATION */
-//     case 0x000C: /* FORM FEED */
-//     case 0x000D: /* CARRIAGE RETURN */
+/*     case 0x0009: * HORIZONTAL TABULATION */
+/*     case 0x000A: * LINE FEED */
+/*     case 0x000B: * VERTICAL TABULATION */
+/*     case 0x000C: * FORM FEED */
+/*     case 0x000D: * CARRIAGE RETURN */
 	0, 1, 1, 1, 1, 1, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
-//     case 0x001C: /* FILE SEPARATOR */
-//     case 0x001D: /* GROUP SEPARATOR */
-//     case 0x001E: /* RECORD SEPARATOR */
-//     case 0x001F: /* UNIT SEPARATOR */
+/*     case 0x001C: * FILE SEPARATOR */
+/*     case 0x001D: * GROUP SEPARATOR */
+/*     case 0x001E: * RECORD SEPARATOR */
+/*     case 0x001F: * UNIT SEPARATOR */
 	0, 0, 0, 0, 1, 1, 1, 1,
-//     case 0x0020: /* SPACE */
+/*     case 0x0020: * SPACE */
 	1, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
@@ -157,13 +157,13 @@
 /* Same for linebreaks */
 static unsigned char ascii_linebreak[] = {
 	0, 0, 0, 0, 0, 0, 0, 0,
-//         0x000A, /* LINE FEED */
-//         0x000D, /* CARRIAGE RETURN */
+/*         0x000A, * LINE FEED */
+/*         0x000D, * CARRIAGE RETURN */
 	0, 0, 1, 0, 0, 1, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
-//         0x001C, /* FILE SEPARATOR */
-//         0x001D, /* GROUP SEPARATOR */
-//         0x001E, /* RECORD SEPARATOR */
+/*         0x001C, * FILE SEPARATOR */
+/*         0x001D, * GROUP SEPARATOR */
+/*         0x001E, * RECORD SEPARATOR */
 	0, 0, 0, 0, 1, 1, 1, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0,