diff --git a/Makefile b/Makefile
index df583035e..1f72c1c74 100644
--- a/Makefile
+++ b/Makefile
@@ -1005,6 +1005,7 @@ ifeq ($(uname_S),SunOS)
 	NO_REGEX = YesPlease
 	NO_FNMATCH_CASEFOLD = YesPlease
 	NO_MSGFMT_EXTENDED_OPTIONS = YesPlease
+	HAVE_DEV_TTY = YesPlease
 	ifeq ($(uname_R),5.6)
 		SOCKLEN_T = int
 		NO_HSTRERROR = YesPlease
diff --git a/compat/terminal.c b/compat/terminal.c
index 6d16c8fba..bbb038dd0 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -59,6 +59,7 @@ char *git_terminal_prompt(const char *prompt, int echo)
 
 	r = strbuf_getline(&buf, fh, '\n');
 	if (!echo) {
+		fseek(fh, SEEK_CUR, 0);
 		putc('\n', fh);
 		fflush(fh);
 	}