diff --git a/README.md b/README.md
index 4f7ab84..6688ce2 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-Similar to [dwm-flexipatch](https://github.com/bakkeby/dwm-flexipatch) this st 0.8.3 (4e90c0, 2020-05-09) project has a different take on st patching. It uses preprocessor directives to decide whether or not to include a patch during build time. Essentially this means that this build, for better or worse, contains both the patched _and_ the original code. The aim being that you can select which patches to include and the build will contain that code and nothing more.
+Similar to [dwm-flexipatch](https://github.com/bakkeby/dwm-flexipatch) this st 0.8.3 (df79f2, 2020-05-09) project has a different take on st patching. It uses preprocessor directives to decide whether or not to include a patch during build time. Essentially this means that this build, for better or worse, contains both the patched _and_ the original code. The aim being that you can select which patches to include and the build will contain that code and nothing more.
 
 For example to include the `alpha` patch then you would only need to flip this setting from 0 to 1 in [patches.h](https://github.com/bakkeby/st-flexipatch/blob/master/patches.def.h):
 ```c
@@ -15,7 +15,7 @@ Refer to [https://st.suckless.org/](https://st.suckless.org/) for details on the
 
 ### Changelog:
 
-2020-05-20 - Upgrade to 4e90c0, 2020-05-09, removed visualbell 1, 2, 3 patches and force redraw after keypress due to incompatibility
+2020-05-20 - Upgrade to df79f2, 2020-05-09, removed visualbell 1, 2, 3 patches and force redraw after keypress due to incompatibility
 
 2020-04-20 - Upgrade to c279f5, 2020-04-19, and added the force redraw on pselect after key is pressed patch and the externalpipein patch
 
diff --git a/st.c b/st.c
index 8c742e5..56f5ccb 100644
--- a/st.c
+++ b/st.c
@@ -46,10 +46,10 @@
 
 /* macros */
 #define IS_SET(flag)    ((term.mode & (flag)) != 0)
-#define ISCONTROLC0(c)  (BETWEEN(c, 0, 0x1f) || (c) == '\177')
+#define ISCONTROLC0(c)  (BETWEEN(c, 0, 0x1f) || (c) == 0x7f)
 #define ISCONTROLC1(c)  (BETWEEN(c, 0x80, 0x9f))
 #define ISCONTROL(c)    (ISCONTROLC0(c) || ISCONTROLC1(c))
-#define ISDELIM(u)		(u && wcschr(worddelimiters, u))
+#define ISDELIM(u)      (u && wcschr(worddelimiters, u))
 
 enum term_mode {
 	MODE_WRAP        = 1 << 0,
@@ -2185,7 +2185,7 @@ tdumpline(int n)
 	bp = &term.line[n][0];
 	end = &bp[MIN(tlinelen(n), term.col) - 1];
 	if (bp != end || bp->u != ' ') {
-		for ( ;bp <= end; ++bp)
+		for ( ; bp <= end; ++bp)
 			tprinter(buf, utf8encode(bp->u, buf));
 	}
 	tprinter("\n", 1);
@@ -2477,7 +2477,7 @@ tputc(Rune u)
 	Glyph *gp;
 
 	control = ISCONTROL(u);
-	if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) {
+	if (!IS_SET(MODE_UTF8 | MODE_SIXEL)) {
 		c[0] = u;
 		width = len = 1;
 	} else {
diff --git a/x.c b/x.c
index 8721081..eab9b86 100644
--- a/x.c
+++ b/x.c
@@ -2313,7 +2313,7 @@ run(void)
 		 * triggers drawing, we first wait a bit to ensure we got
 		 * everything, and if nothing new arrives - we draw.
 		 * We start with trying to wait minlatency ms. If more content
-		 * arrives sooner, we retry with shorter and shorter preiods,
+		 * arrives sooner, we retry with shorter and shorter periods,
 		 * and eventually draw even without idle after maxlatency ms.
 		 * Typically this results in low latency while interacting,
 		 * maximum latency intervals during `cat huge.txt`, and perfect