diff --git a/libgphoto2_port/libgphoto2_port/gphoto2-port-info-list.c b/libgphoto2_port/libgphoto2_port/gphoto2-port-info-list.c
index ee9555065..743cd5642 100644
--- a/libgphoto2_port/libgphoto2_port/gphoto2-port-info-list.c
+++ b/libgphoto2_port/libgphoto2_port/gphoto2-port-info-list.c
@@ -31,6 +31,8 @@
 #include <stdio.h>
 #ifdef HAVE_REGEX
 #include <regex.h>
+#elif defined(_MSC_VER)
+#pragma message("We need regex.h, but it has not been detected.")
 #else
 #warning We need regex.h, but it has not been detected.
 #endif