diff --git a/src/util/filemanager.c b/src/util/filemanager.c
index 49ca4a3..9603ce4 100644
--- a/src/util/filemanager.c
+++ b/src/util/filemanager.c
@@ -194,7 +194,7 @@ int _get_temp_filename(char **tempname)
     // --- for non-Windows systems:
 #else
     // --- use system function mkstemp() to create a temporary file name
-    copy_cstr("enXXXXXX", tempname, size)
+    copy_cstr("enXXXXXX", tempname);
     error = mkstemp(*tempname);
 #endif
     return error;