diff --git a/libr/bin/pdb/pdb_downloader.c b/libr/bin/pdb/pdb_downloader.c
index af23fc166f..25bb1117b5 100644
--- a/libr/bin/pdb/pdb_downloader.c
+++ b/libr/bin/pdb/pdb_downloader.c
@@ -5,12 +5,20 @@
 #include <r_core.h>
 
 static int checkPrograms () {
-	// TODO > /dev/null is not portable
+#if __WINDOWS__ && !__CYGWIN__
+	char nul[] = "nul";
+	if (r_sys_cmd ("expand >nul") != 0) {
+		eprintf ("Missing expand\n");
+		return 0;
+	}
+#else
+	char nul[] = "/dev/null";
 	if (r_sys_cmd ("cabextract -v > /dev/null") != 0) {
 		eprintf ("Missing cabextract\n");
 		return 0;
 	}
-	if (r_sys_cmd ("curl --version > /dev/null") != 0) {
+#endif
+	if (r_sys_cmdf ("curl --version >%s", nul) != 0) {
 		eprintf ("Missing curl\n");
 		return 0;
 	}