diff --git a/src/flash/nor/nrf51.c b/src/flash/nor/nrf51.c
index 8b6a57fb8..bfa199a2f 100644
--- a/src/flash/nor/nrf51.c
+++ b/src/flash/nor/nrf51.c
@@ -581,6 +581,12 @@ static int nrf51_erase_page(struct flash_bank *bank,
 		}
 
 		if ((ppfc & 0xFF) == 0xFF) {
+			/* We can't erase the UICR.  Double-check to
+			   see if it's already erased before complaining. */
+			default_flash_blank_check(bank);
+			if (sector->is_erased == 1)
+				return ERROR_OK;
+
 			LOG_ERROR("The chip was not pre-programmed with SoftDevice stack and UICR cannot be erased separately. Please issue mass erase before trying to write to this region");
 			return ERROR_FAIL;
 		};