diff --git a/fftools/textformat/avtextformat.c b/fftools/textformat/avtextformat.c
index e1aaa9ba57..af47879767 100644
--- a/fftools/textformat/avtextformat.c
+++ b/fftools/textformat/avtextformat.c
@@ -433,7 +433,7 @@ static char *value_string(const AVTextFormatContext *tctx, char *buf, int buf_si
 }
 
 
-void avtext_print_unit_int(AVTextFormatContext *tctx, const char *key, int value, const char *unit)
+void avtext_print_unit_int(AVTextFormatContext *tctx, const char *key, int64_t value, const char *unit)
 {
     char val_str[128];
     struct unit_value uv;
diff --git a/fftools/textformat/avtextformat.h b/fftools/textformat/avtextformat.h
index cf23d93871..8316829af5 100644
--- a/fftools/textformat/avtextformat.h
+++ b/fftools/textformat/avtextformat.h
@@ -169,7 +169,7 @@ void avtext_print_integer(AVTextFormatContext *tctx, const char *key, int64_t va
 
 int avtext_print_string(AVTextFormatContext *tctx, const char *key, const char *val, int flags);
 
-void avtext_print_unit_int(AVTextFormatContext *tctx, const char *key, int value, const char *unit);
+void avtext_print_unit_int(AVTextFormatContext *tctx, const char *key, int64_t value, const char *unit);
 
 void avtext_print_rational(AVTextFormatContext *tctx, const char *key, AVRational q, char sep);