diff --git a/targets/ARCH/COMMON/common_lib.h b/targets/ARCH/COMMON/common_lib.h
index a6c8e43483..a366b54023 100644
--- a/targets/ARCH/COMMON/common_lib.h
+++ b/targets/ARCH/COMMON/common_lib.h
@@ -44,8 +44,9 @@
 #define BBU_LOCAL_RADIO_HEAD  0
 #define BBU_REMOTE_RADIO_HEAD 1
 
+#ifndef MAX_CARDS
 #define MAX_CARDS 8
-
+#endif
 
 typedef int64_t openair0_timestamp;
 typedef volatile int64_t openair0_vtimestamp;
diff --git a/targets/ARCH/EXMIMO/DEFS/openair_device.h b/targets/ARCH/EXMIMO/DEFS/openair_device.h
index b4916490e2..b22cf1879b 100644
--- a/targets/ARCH/EXMIMO/DEFS/openair_device.h
+++ b/targets/ARCH/EXMIMO/DEFS/openair_device.h
@@ -24,9 +24,8 @@
 
 
 // Maximum number of concurrently supported cards
-// defined in openair_common_lib.h
-//#define MAX_CARDS  16 
-//#define INIT_ZEROS {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+#define MAX_CARDS  16 
+#define INIT_ZEROS {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 
 
 /** PCIe subsystem configuration Space