diff --git a/user/tb/interp.c b/user/tb/interp.c
index 4e28be1..92f7363 100644
--- a/user/tb/interp.c
+++ b/user/tb/interp.c
@@ -34,7 +34,33 @@ void tz_tokenize(Tokenizer *tz) {
       i++;
       size_t j = 0;
       while (i < len && tz->str[i] != '\'') {
-        str[j++] = tz->str[i++];
+        if (tz->str[i] == '\\') {
+          if (i + 1 < len) {
+            i++;
+            char c;
+            switch (tz->str[i]) {
+              case 'n':   c = '\n'; break;
+              case 't':   c = '\t'; break;
+              case 'r':   c = '\r'; break;
+              case '\\':  c = '\\'; break;
+              case '\'':  c = '\''; break;
+              case '"':   c = '"'; break;
+              default:    c = tz->str[i]; break;
+            }
+            if (j + 1 < TZ_MAX_TK) {
+              str[j++] = c;
+            }
+          } else {
+            if (j + 1 < TZ_MAX_TK) {
+              str[j++] = '\\';
+            }
+          }
+        } else {
+          if (j + 1 < TZ_MAX_TK) {
+            str[j++] = tz->str[i];
+          }
+        }
+        i++;
       }
       Token *tk = umalloc(sizeof(*tk));
       tk->str = str;
@@ -44,8 +70,11 @@ void tz_tokenize(Tokenizer *tz) {
       char *tkstr = umalloc(TZ_MAX_TK);
       string_memset(tkstr, 0, TZ_MAX_TK);
       size_t j = 0;
-      while (i < len && !string_chr_isspace(tz->str[i])) {
-        tkstr[j++] = tz->str[i++];
+      while (i < len && !string_chr_isspace(tz->str[i]) && tz->str[i] != '\'') {
+        if (j + 1 < TZ_MAX_TK) {
+          tkstr[j++] = tz->str[i];
+        }
+        i++;
       }
       Token *tk = umalloc(sizeof(*tk));
       tk->str = tkstr;