diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index 96acb9cbd..3c82bc7fc 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -1246,10 +1246,7 @@ void message(const pm_char *title, const pm_char *t, const char *last MESSAGE_SO
 }
 
 #if defined(GVARS)
-  int8_t trimGvar[NUM_STICKS] = { -1, -1, -1, -1 };
-  #define TRIM_REUSED(idx) trimGvar[idx] >= 0
-#else
-  #define TRIM_REUSED(idx) 0
+int8_t trimGvar[NUM_STICKS] = { -1, -1, -1, -1 };
 #endif
 
 #if defined(CPUARM)
diff --git a/radio/src/opentx.h b/radio/src/opentx.h
index 2ab9ec925..620357de3 100644
--- a/radio/src/opentx.h
+++ b/radio/src/opentx.h
@@ -770,6 +770,13 @@ int8_t  getMovedSwitch();
   #define getTrimFlightPhase(phase, idx) (phase)
 #endif
 
+#if defined(GVARS)
+  extern int8_t trimGvar[NUM_STICKS];
+  #define TRIM_REUSED(idx) trimGvar[idx] >= 0
+#else
+  #define TRIM_REUSED(idx) 0
+#endif
+
 trim_t getRawTrimValue(uint8_t phase, uint8_t idx);
 int getTrimValue(uint8_t phase, uint8_t idx);