diff --git a/compilecode.c b/compilecode.c
index f28e313..225c8a6 100644
--- a/compilecode.c
+++ b/compilecode.c
@@ -197,20 +197,20 @@ int re1_5_compilecode(ByteProg *prog, const char *re)
 void
 cleanmarks(ByteProg *prog)
 {
-       char *pc = prog->insts;
-       char *end = pc + prog->bytelen;
-       while (pc < end) {
-               *pc &= 0x7f;
-               switch (*pc) {
-               case Jmp:
-               case Split:
-               case RSplit:
-               case Save:
-               case Char:
-                       pc++;
-               }
-               pc++;
-       }
+    char *pc = prog->insts;
+    char *end = pc + prog->bytelen;
+    while (pc < end) {
+        *pc &= 0x7f;
+        switch (*pc) {
+        case Jmp:
+        case Split:
+        case RSplit:
+        case Save:
+        case Char:
+                pc++;
+        }
+        pc++;
+    }
 }
 
 #if 0