diff --git a/libbb/trim.c b/libbb/trim.c
index d3be62d93..76b87ca1c 100644
--- a/libbb/trim.c
+++ b/libbb/trim.c
@@ -35,10 +35,6 @@ void trim(char *s)
 {
 	int len = strlen(s);
 
-	/* sanity check */
-	if (len == 0)
-		return;
-
 	/* trim trailing whitespace */
 	while ( len > 0 && isspace(s[len-1]))
 		s[--len]='\0';