diff --git a/boards/xtensa/esp32/esp32-devkitc/src/Make.defs b/boards/xtensa/esp32/esp32-devkitc/src/Make.defs
index a2bd15606ea..6b9654cc849 100644
--- a/boards/xtensa/esp32/esp32-devkitc/src/Make.defs
+++ b/boards/xtensa/esp32/esp32-devkitc/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)
diff --git a/boards/xtensa/esp32/esp32-ethernet-kit/src/Make.defs b/boards/xtensa/esp32/esp32-ethernet-kit/src/Make.defs
index b6f0b79146c..a9239f91242 100644
--- a/boards/xtensa/esp32/esp32-ethernet-kit/src/Make.defs
+++ b/boards/xtensa/esp32/esp32-ethernet-kit/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)
diff --git a/boards/xtensa/esp32/esp32-lyrat/src/Make.defs b/boards/xtensa/esp32/esp32-lyrat/src/Make.defs
index ce55853e339..a2e62902ca1 100644
--- a/boards/xtensa/esp32/esp32-lyrat/src/Make.defs
+++ b/boards/xtensa/esp32/esp32-lyrat/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_USERLED),y)
diff --git a/boards/xtensa/esp32/esp32-sparrow-kit/src/Make.defs b/boards/xtensa/esp32/esp32-sparrow-kit/src/Make.defs
index 235a708505f..6157dd16f53 100644
--- a/boards/xtensa/esp32/esp32-sparrow-kit/src/Make.defs
+++ b/boards/xtensa/esp32/esp32-sparrow-kit/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_ARCH_LEDS),y)
diff --git a/boards/xtensa/esp32/esp32-wrover-kit/src/Make.defs b/boards/xtensa/esp32/esp32-wrover-kit/src/Make.defs
index 6bbffb584c3..7b41c40c113 100644
--- a/boards/xtensa/esp32/esp32-wrover-kit/src/Make.defs
+++ b/boards/xtensa/esp32/esp32-wrover-kit/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_ARCH_LEDS),y)
diff --git a/boards/xtensa/esp32/lilygo_tbeam_lora_gps/src/Make.defs b/boards/xtensa/esp32/lilygo_tbeam_lora_gps/src/Make.defs
index dcf64770a89..656290e7759 100644
--- a/boards/xtensa/esp32/lilygo_tbeam_lora_gps/src/Make.defs
+++ b/boards/xtensa/esp32/lilygo_tbeam_lora_gps/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)
diff --git a/boards/xtensa/esp32/ttgo_eink5_v2/src/Make.defs b/boards/xtensa/esp32/ttgo_eink5_v2/src/Make.defs
index 07b2a5d445b..12720544976 100644
--- a/boards/xtensa/esp32/ttgo_eink5_v2/src/Make.defs
+++ b/boards/xtensa/esp32/ttgo_eink5_v2/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)
diff --git a/boards/xtensa/esp32/ttgo_lora_esp32/src/Make.defs b/boards/xtensa/esp32/ttgo_lora_esp32/src/Make.defs
index dcf64770a89..656290e7759 100644
--- a/boards/xtensa/esp32/ttgo_lora_esp32/src/Make.defs
+++ b/boards/xtensa/esp32/ttgo_lora_esp32/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)
diff --git a/boards/xtensa/esp32/ttgo_t_display_esp32/src/Make.defs b/boards/xtensa/esp32/ttgo_t_display_esp32/src/Make.defs
index 44bee80c2bd..9006052b070 100644
--- a/boards/xtensa/esp32/ttgo_t_display_esp32/src/Make.defs
+++ b/boards/xtensa/esp32/ttgo_t_display_esp32/src/Make.defs
@@ -20,8 +20,6 @@
 
 include $(TOPDIR)/Make.defs
 
-CONFIGFILE = $(TOPDIR)$(DELIM)include$(DELIM)nuttx$(DELIM)config.h
-
 CSRCS = esp32_boot.c esp32_bringup.c
 
 ifeq ($(CONFIG_BOARDCTL),y)