diff --git a/src/eeprom_rlc.h b/src/eeprom_rlc.h
index 669f828b7..087951780 100644
--- a/src/eeprom_rlc.h
+++ b/src/eeprom_rlc.h
@@ -41,10 +41,14 @@
 
 #if defined(PCBTARANIS)
   #define blkid_t    uint16_t
-  #if defined(REV4a)
-    #define EESIZE   (64*1024)
+  #if not defined (EESIZE)
+    #if defined(REV4a)
+      #define EESIZE   (64*1024)
+    #else
+      #define EESIZE   (32*1024)
+    #endif
   #else
-    #define EESIZE   (32*1024)
+    #define EESIZE_SIMU (64*1024)
   #endif
   #define EEFS_VERS  5
   #define MAXFILES   62
diff --git a/src/simpgmspace.cpp b/src/simpgmspace.cpp
index 0cd49538f..2a8bd515f 100644
--- a/src/simpgmspace.cpp
+++ b/src/simpgmspace.cpp
@@ -80,8 +80,10 @@ bool eeprom_read_operation;
 extern uint16_t eeprom_pointer;
 extern const char* eeprom_buffer_data;
 #endif
-
-uint8_t eeprom[EESIZE];
+#if not defined (EESIZE_SIMU)
+  #define EESIZE_SIMU EESIZE
+#endif
+uint8_t eeprom[EESIZE_SIMU];
 sem_t *eeprom_write_sem;
 
 #if defined(CPUARM)