diff --git a/configs/README.txt b/configs/README.txt
index a123a1f0157..df1516c6619 100644
--- a/configs/README.txt
+++ b/configs/README.txt
@@ -164,7 +164,8 @@ defconfig -- This is a configuration file similar to the Linux
 	  up waiting tasks.
 
 		CONFIG_DISABLE_CLOCK, CONFIG_DISABLE_POSIX_TIMERS, CONFIG_DISABLE_PTHREAD.
-		CONFIG_DISABLE_SIGNALS, CONFIG_DISABLE_MQUEUE, CONFIG_DISABLE_MOUNTPOUNT
+		CONFIG_DISABLE_SIGNALS, CONFIG_DISABLE_MQUEUE, CONFIG_DISABLE_MOUNTPOUNT,
+		CONFIG_DISABLE_ENVIRON
 
 
 	Misc libc settings
diff --git a/configs/c5471evm/defconfig b/configs/c5471evm/defconfig
index e247d9e87ce..840b410ede9 100644
--- a/configs/c5471evm/defconfig
+++ b/configs/c5471evm/defconfig
@@ -163,6 +163,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
diff --git a/configs/m68332evb/defconfig b/configs/m68332evb/defconfig
index 2185e760a24..5210453560e 100644
--- a/configs/m68332evb/defconfig
+++ b/configs/m68332evb/defconfig
@@ -152,6 +152,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
diff --git a/configs/mcu123-lpc214x/defconfig b/configs/mcu123-lpc214x/defconfig
index ca0c9a15337..43b575fcf5a 100644
--- a/configs/mcu123-lpc214x/defconfig
+++ b/configs/mcu123-lpc214x/defconfig
@@ -176,6 +176,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
diff --git a/configs/ntosd-dm320/defconfig b/configs/ntosd-dm320/defconfig
index 640783cf1df..55753fdc0fc 100644
--- a/configs/ntosd-dm320/defconfig
+++ b/configs/ntosd-dm320/defconfig
@@ -161,6 +161,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
diff --git a/configs/pjrc-8051/defconfig b/configs/pjrc-8051/defconfig
index c9b8a481a33..6ae70d59266 100644
--- a/configs/pjrc-8051/defconfig
+++ b/configs/pjrc-8051/defconfig
@@ -149,6 +149,7 @@ CONFIG_DISABLE_PTHREAD=y
 CONFIG_DISABLE_SIGNALS=y
 CONFIG_DISABLE_MQUEUE=y
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
diff --git a/configs/sim/defconfig b/configs/sim/defconfig
index e5940848ea2..e60848b0a9f 100644
--- a/configs/sim/defconfig
+++ b/configs/sim/defconfig
@@ -117,6 +117,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=n
+CONFIG_DISABLE_ENVIRON=n
 
 #
 # Misc libc settings