1 files changed, 6 insertions, 1 deletions
diff --git a/editcap.c b/editcap.c
index 225e9791df..bf2270fb4f 100644
--- a/editcap.c
+++ b/editcap.c
@@ -926,7 +926,12 @@ get_editcap_compiled_info(GString *str)
 }
 
 static void
-get_editcap_runtime_info(GString *str _U_)
+get_editcap_runtime_info(
+#if defined(HAVE_LIBZ) && !defined(_WIN32)
+    GString *str)
+#else
+    GString *str _U_)
+#endif
 {
   /* zlib */
 #if defined(HAVE_LIBZ) && !defined(_WIN32)