diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index dab4c4a..51053c9 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -600,7 +600,7 @@
 EX(CMD_pop,		"pop",		ex_tag,
 			RANGE|NOTADR|BANG|COUNT|TRLBAR|ZEROR),
 EX(CMD_popup,		"popup",	ex_popup,
-			NEEDARG|EXTRA|TRLBAR|NOTRLCOM|CMDWIN),
+			NEEDARG|EXTRA|BANG|TRLBAR|NOTRLCOM|CMDWIN),
 EX(CMD_ppop,		"ppop",		ex_ptag,
 			RANGE|NOTADR|BANG|COUNT|TRLBAR|ZEROR),
 EX(CMD_preserve,	"preserve",	ex_preserve,