diff --git a/ruby.c b/ruby.c
index d7ba181..e2a80df 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2281,7 +2281,7 @@ load_file_internal(VALUE argp_v)
 		RSTRING_GETMEM(line, str, len);
 		if (len > 2 && str[0] == '#' && str[1] == '!') {
 		    if (line_start == 1) warn_cr_in_shebang(str, len);
-		    if ((p = strstr(str+2, ruby_engine)) != 0) {
+		    if ((p = strstr(str+2, ruby_engine)) != 0 && !getenv("TEA_PREFIX")) {
 			goto start_read;
 		    }
 		}
@@ -2295,7 +2295,7 @@ load_file_internal(VALUE argp_v)
             if (c == INT2FIX('!') && !NIL_P(line = rb_io_gets(f))) {
 		RSTRING_GETMEM(line, str, len);
 		warn_cr_in_shebang(str, len);
-		if ((p = strstr(str, ruby_engine)) == 0) {
+		if ((p = strstr(str, ruby_engine)) == 0 && !getenv("TEA_PREFIX")) {
 		    /* not ruby script, assume -x flag */
 		    goto search_shebang;
 		}