diff --git a/armsrc/fpgaloader.c b/armsrc/fpgaloader.c
index 04c49edd2..b7554f6a0 100644
--- a/armsrc/fpgaloader.c
+++ b/armsrc/fpgaloader.c
@@ -449,8 +449,8 @@ void FpgaWriteConfWord(uint8_t v) {
 // the samples from the ADC always flow through the FPGA.
 //-----------------------------------------------------------------------------
 void SetAdcMuxFor(uint32_t whichGpio) {
-    /*
-    #ifndef WITH_FPC
+
+#ifndef WITH_FPC
         // When compiled without FPC support
         AT91C_BASE_PIOA->PIO_OER =
             GPIO_MUXSEL_HIPKD |
@@ -469,14 +469,13 @@ void SetAdcMuxFor(uint32_t whichGpio) {
         LOW(GPIO_MUXSEL_HIRAW);
         LOW(GPIO_MUXSEL_LORAW);
 
-    #else
-    */
+#else
     // FPC serial uses HIRAW/LOWRAW pins, so they are excluded here.
     AT91C_BASE_PIOA->PIO_OER = GPIO_MUXSEL_HIPKD | GPIO_MUXSEL_LOPKD;
     AT91C_BASE_PIOA->PIO_PER = GPIO_MUXSEL_HIPKD | GPIO_MUXSEL_LOPKD;
     LOW(GPIO_MUXSEL_HIPKD);
     LOW(GPIO_MUXSEL_LOPKD);
-//#endif
+#endif
 
     HIGH(whichGpio);
 }