diff --git a/src/cmd/9660/jchar.c b/src/cmd/9660/jchar.c
index c49da63..ccd3b6d 100644
--- a/src/cmd/9660/jchar.c
+++ b/src/cmd/9660/jchar.c
@@ -34,7 +34,7 @@
 int
 isjolietfrog(Rune r)
 {
-	return r==L'*' || r==L'/' || r==L':' 
+	return r=='*' || r=='/' || r==':' 
 		|| r==';' || r=='?' || r=='\\';
 }
 
diff --git a/src/cmd/acme/ecmd.c b/src/cmd/acme/ecmd.c
index eed4550..6fef069 100644
--- a/src/cmd/acme/ecmd.c
+++ b/src/cmd/acme/ecmd.c
@@ -479,7 +479,7 @@
 	buf = allocstring(0);
 	for(m=0; m<nrp; m++){
 		buf->n = 0;
-		buf->r[0] = L'\0';
+		buf->r[0] = '\0';
 		sel = rp[m];
 		for(i = 0; i<cp->u.text->n; i++)
 			if((c = cp->u.text->r[i])=='\\' && i<cp->u.text->n-1){
@@ -761,7 +761,7 @@
 		if(np>RBUFSIZE-1)
 			np = RBUFSIZE-1;
 		bufread(&f->b, p1, buf, np);
-		buf[np] = L'\0';
+		buf[np] = '\0';
 		warning(nil, "%S", buf);
 		p1 += np;
 	}
diff --git a/src/cmd/deroff.c b/src/cmd/deroff.c
index 914c5a3..1b758ef 100644
--- a/src/cmd/deroff.c
+++ b/src/cmd/deroff.c
@@ -847,11 +847,11 @@
 {
 	int n = 1;
 
-	while (C != L'\n' && !(L'0' <= c && c <= L'9'))
+	while (C != '\n' && !('0' <= c && c <= '9'))
 		;
-	if (c != L'\n') {
-		for (n = c-L'0';'0' <= C && c <= L'9';)
-			n = n*10 + c-L'0';
+	if (c != '\n') {
+		for (n = c-'0';'0' <= C && c <= '9';)
+			n = n*10 + c-'0';
 	}
 	while(n) {
 		if(C == '.') {
diff --git a/src/cmd/dict/dict.c b/src/cmd/dict/dict.c
index 4526648..6704775 100644
--- a/src/cmd/dict/dict.c
+++ b/src/cmd/dict/dict.c
@@ -502,7 +502,7 @@
 		case 0x7c: case 0x5e: case 0x24:
 			*pre = 0;
 			return p-pat;
-		case L'\\':
+		case '\\':
 			p += n;
 			p += chartorune(++pre, p);
 			pre++;
@@ -542,7 +542,7 @@
 		if ((c = Bgetrune(bindex)) < 0)
 			return 0;
 		if(c == '\t' || c == '\n') {
-			*rp = L'\0';
+			*rp = '\0';
 			return 1;
 		}
 		*rp++ = c;
diff --git a/src/cmd/ed.c b/src/cmd/ed.c
index 0b4be59..f44acb0 100644
--- a/src/cmd/ed.c
+++ b/src/cmd/ed.c
@@ -393,7 +393,7 @@
 			newline();
 			count = addr2 - zero;
 			putd();
-			putchr(L'\n');
+			putchr('\n');
 			continue;
 
 		case '!':
@@ -419,7 +419,7 @@
 		if(listn) {
 			count = a1-zero;
 			putd();
-			putchr(L'\t');
+			putchr('\t');
 		}
 		putshst(getline(*a1++));
 	} while(a1 <= addr2);
@@ -624,7 +624,7 @@
 	io = -1;
 	if(vflag) {
 		putd();
-		putchr(L'\n');
+		putchr('\n');
 	}
 }
 
@@ -653,7 +653,7 @@
 		close(io);
 		io = -1;
 	}
-	putchr(L'?');
+	putchr('?');
 	putst(s);
 }
 
@@ -687,7 +687,7 @@
 	if(strcmp(s, "interrupt") == 0){
 		if(rescuing || waiting)
 			noted(NCONT);
-		putchr(L'\n');
+		putchr('\n');
 		lastc = '\n';
 		error1(Q);
 		notejmp(a, savej, 0);
@@ -1496,7 +1496,7 @@
 	count /= 10;
 	if(count)
 		putd();
-	putchr(r + L'0');
+	putchr(r + '0');
 }
 
 void
@@ -1511,7 +1511,7 @@
 			break;
 		putchr(r);
 	}
-	putchr(L'\n');
+	putchr('\n');
 }
 
 void
@@ -1520,7 +1520,7 @@
 	col = 0;
 	while(*sp)
 		putchr(*sp++);
-	putchr(L'\n');
+	putchr('\n');
 }
 
 void
diff --git a/src/cmd/look.c b/src/cmd/look.c
index f447b8d..369afe1 100644
--- a/src/cmd/look.c
+++ b/src/cmd/look.c
@@ -10,16 +10,16 @@
 #undef isalnum
 #undef isspace
 #undef tolower
-#define	isupper(r)	(L'A' <= (r) && (r) <= L'Z')
-#define	islower(r)	(L'a' <= (r) && (r) <= L'z')
+#define	isupper(r)	('A' <= (r) && (r) <= 'Z')
+#define	islower(r)	('a' <= (r) && (r) <= 'z')
 #define	isalpha(r)	(isupper(r) || islower(r))
 #define	islatin1(r)	(0xC0 <= (r) && (r) <= 0xFF)
 
-#define	isdigit(r)	(L'0' <= (r) && (r) <= L'9')
+#define	isdigit(r)	('0' <= (r) && (r) <= '9')
 
 #define	isalnum(r)	(isalpha(r) || isdigit(r))
 
-#define	isspace(r)	((r) == L' ' || (r) == L'\t' \
+#define	isspace(r)	((r) == ' ' || (r) == '\t' \
 			|| (0x0A <= (r) && (r) <= 0x0D))
 
 #define	tolower(r)	((r)-'A'+'a')
@@ -263,7 +263,7 @@
 		if (islatin1(r) && latin_fold_tab[r-0xc0])
 				r = latin_fold_tab[r-0xc0];
 		if(direc)
-			if(!(isalnum(r) || r == L' ' || r == L'\t'))
+			if(!(isalnum(r) || r == ' ' || r == '\t'))
 				continue;
 		if(fold)
 			if(isupper(r))
@@ -339,7 +339,7 @@
 		if(c < 0)
 			return 0;
 		if(c == '\n') {
-			*rp = L'\0';
+			*rp = '\0';
 			return 1;
 		}
 		*rp++ = c;