diff --git a/libraries/AP_HAL_Linux/RCOutput.cpp b/libraries/AP_HAL_Linux/RCOutput.cpp
index 0a283da017..b994cddd06 100644
--- a/libraries/AP_HAL_Linux/RCOutput.cpp
+++ b/libraries/AP_HAL_Linux/RCOutput.cpp
@@ -34,7 +34,8 @@ void LinuxRCOutput::init(void* machtnicht)
     uint32_t mem_fd;
     signal(SIGBUS,catch_sigbus);
     mem_fd = open("/dev/mem", O_RDWR|O_SYNC);
-    sharedMem_cmd = (struct pwm_cmd *) mmap(0, 0x1000, PROT_READ|PROT_WRITE, MAP_SHARED, mem_fd, PRUSS_SHAREDRAM_BASE);
+    sharedMem_cmd = (struct pwm_cmd *) mmap(0, 0x1000, PROT_READ|PROT_WRITE, 
+                                            MAP_SHARED, mem_fd, RCOUT_PRUSS_SHAREDRAM_BASE);
     close(mem_fd);
 }
 
diff --git a/libraries/AP_HAL_Linux/RCOutput.h b/libraries/AP_HAL_Linux/RCOutput.h
index 82f3ea317e..09e656f64d 100644
--- a/libraries/AP_HAL_Linux/RCOutput.h
+++ b/libraries/AP_HAL_Linux/RCOutput.h
@@ -3,7 +3,7 @@
 #define __AP_HAL_LINUX_RCOUTPUT_H__
 
 #include <AP_HAL_Linux.h>
-#define PRUSS_SHAREDRAM_BASE     0x4a310000
+#define RCOUT_PRUSS_SHAREDRAM_BASE     0x4a310000
 #define MAX_PWMS                 12
 #define PWM_CMD_MAGIC            0xf00fbaaf
 #define PWM_REPLY_MAGIC          0xbaaff00f