diff --git a/radio/src/targets/simu/led_driver.cpp b/radio/src/targets/simu/led_driver.cpp
index 4201222da..645515182 100644
--- a/radio/src/targets/simu/led_driver.cpp
+++ b/radio/src/targets/simu/led_driver.cpp
@@ -83,3 +83,13 @@ uint32_t fsGetLedRGB(uint8_t index)
 {
   return rgbGetLedColor(index);
 }
+
+void fsLedOn(uint8_t idx)
+{
+  rgbSetLedColor(idx, 0xFF, 0xFF, 0xFF);
+}
+
+void fsLedOff(uint8_t idx)
+{
+  rgbSetLedColor(idx, 0, 0, 0);
+}
diff --git a/radio/src/targets/simu/opentxsimulator.cpp b/radio/src/targets/simu/opentxsimulator.cpp
index 1c96ef2b0..ccf5189ee 100644
--- a/radio/src/targets/simu/opentxsimulator.cpp
+++ b/radio/src/targets/simu/opentxsimulator.cpp
@@ -91,16 +91,6 @@ void firmwareTraceCb(const char * text)
   }
 }
 
-void fsLedOn(uint8_t idx)
-{
-  rgbSetLedColor(idx, 0xFF, 0xFF, 0xFF);
-}
-
-void fsLedOff(uint8_t idx)
-{
-  rgbSetLedColor(idx, 0, 0, 0);
-}
-
 // Serial port handling needs to know about OpenTxSimulator, so we we
 // need to update what's in simpgmspace.cpp when we have a simulator
 // to point at.
diff --git a/radio/src/tests/gtests.cpp b/radio/src/tests/gtests.cpp
index 5f53be78b..e822c934a 100644
--- a/radio/src/tests/gtests.cpp
+++ b/radio/src/tests/gtests.cpp
@@ -129,14 +129,6 @@ uint16_t simu_get_analog(uint8_t idx)
 
 void simuQueueAudio(const uint8_t*, uint32_t) {}
 
-void fsLedOn(uint8_t idx)
-{
-}
-
-void fsLedOff(uint8_t idx)
-{
-}
-
 static char _stringResult[200];
 
 const char * nchar2string(const char * string, int size)