3 files changed, 3 insertions, 3 deletions
diff --git a/pdf/mupdf-internal.h b/pdf/mupdf-internal.h
index b38f7095..667f996a 100644
--- a/pdf/mupdf-internal.h
+++ b/pdf/mupdf-internal.h
@@ -633,7 +633,7 @@ typedef struct pdf_js_event_s
 	int rc;
 } pdf_js_event;
 
-int pdf_js_supported();
+int pdf_js_supported(void);
 pdf_js *pdf_new_js(pdf_document *doc);
 void pdf_drop_js(pdf_js *js);
 void pdf_js_load_document_level(pdf_js *js);
diff --git a/pdf/pdf_js.c b/pdf/pdf_js.c
index 0060061f..f0920005 100644
--- a/pdf/pdf_js.c
+++ b/pdf/pdf_js.c
@@ -912,7 +912,7 @@ void pdf_js_execute_count(pdf_js *js, char *code, int count)
 	}
 }
 
-int pdf_js_supported()
+int pdf_js_supported(void)
 {
 	return 1;
 }
diff --git a/pdf/pdf_js_none.c b/pdf/pdf_js_none.c
index bdf29002..dc06f039 100644
--- a/pdf/pdf_js_none.c
+++ b/pdf/pdf_js_none.c
@@ -31,7 +31,7 @@ void pdf_js_execute_count(pdf_js *js, char *code, int count)
 {
 }
 
-int pdf_js_supported()
+int pdf_js_supported(void)
 {
 	return 0;
 }