diff --git a/arch/arm/src/nrf52/nrf52_serial.c b/arch/arm/src/nrf52/nrf52_serial.c
index 5dada17d502..ab242e77a03 100644
--- a/arch/arm/src/nrf52/nrf52_serial.c
+++ b/arch/arm/src/nrf52/nrf52_serial.c
@@ -856,8 +856,8 @@ int up_putc(int ch)
     }
 
   arm_lowputc(ch);
-  return ch;
 #endif
+  return ch;
 }
 
 #endif /* HAVE_UART_DEVICE && USE_SERIALDRIVER */
diff --git a/arch/arm/src/nrf53/nrf53_serial.c b/arch/arm/src/nrf53/nrf53_serial.c
index efd8843ca1a..d9b41e63cc3 100644
--- a/arch/arm/src/nrf53/nrf53_serial.c
+++ b/arch/arm/src/nrf53/nrf53_serial.c
@@ -856,8 +856,8 @@ int up_putc(int ch)
     }
 
   arm_lowputc(ch);
-  return ch;
 #endif
+  return ch;
 }
 
 #endif /* HAVE_UART_DEVICE && USE_SERIALDRIVER */
diff --git a/arch/arm/src/nrf91/nrf91_serial.c b/arch/arm/src/nrf91/nrf91_serial.c
index c11a2503e38..1495696d0bf 100644
--- a/arch/arm/src/nrf91/nrf91_serial.c
+++ b/arch/arm/src/nrf91/nrf91_serial.c
@@ -856,8 +856,8 @@ int up_putc(int ch)
     }
 
   arm_lowputc(ch);
-  return ch;
 #endif
+  return ch;
 }
 
 #endif /* HAVE_UART_DEVICE && USE_SERIALDRIVER */