diff -up ./src/PCSC/pcsclite.h.in.readers_32 ./src/PCSC/pcsclite.h.in
--- ./src/PCSC/pcsclite.h.in.readers_32	2018-08-20 16:02:17.708302410 -0700
+++ ./src/PCSC/pcsclite.h.in	2018-08-20 16:02:49.462500967 -0700
@@ -281,7 +281,7 @@ extern const SCARD_IO_REQUEST g_rgSCardT
 
 #define PCSCLITE_VERSION_NUMBER		"@VERSION@"	/**< Current version */
 /** Maximum readers context (a slot is count as a reader) */
-#define PCSCLITE_MAX_READERS_CONTEXTS			16
+#define PCSCLITE_MAX_READERS_CONTEXTS			48
 
 #define MAX_READERNAME			128