diff --git a/vm/nga-c/retro.c b/vm/nga-c/retro.c
index 2687655..52a402c 100644
--- a/vm/nga-c/retro.c
+++ b/vm/nga-c/retro.c
@@ -1699,7 +1699,7 @@ size_t strlcat(char *dst, const char *src, size_t dsize) {
     src++;
   }
   *dst = '\0';
-  return(dlen + (src - osrc));	/* count does not include NUL */
+  return(dlen + (src - osrc));  /* count does not include NUL */
 }
 
 size_t strlcpy(char *dst, const char *src, size_t dsize) {
@@ -1717,10 +1717,10 @@ size_t strlcpy(char *dst, const char *src, size_t dsize) {
   /* Not enough room in dst, add NUL and traverse rest of src. */
   if (nleft == 0) {
     if (dsize != 0)
-      *dst = '\0';		/* NUL-terminate dst */
+      *dst = '\0';              /* NUL-terminate dst */
     while (*src++)
       ;
   }
-  return(src - osrc - 1);	/* count does not include NUL */
+  return(src - osrc - 1);       /* count does not include NUL */
 }
 #endif