diff --git a/configs/ea3250_defconfig b/configs/ea3250_defconfig
index 9cd7b34..2574dde 100644
--- a/configs/ea3250_defconfig
+++ b/configs/ea3250_defconfig
@@ -11,6 +11,10 @@ BR2_ARM_EABI=y
 # that will compile a kernel with ethernet working correctly
 BR2_GCC_VERSION_4_3_X=y
 
+# Lock down headers to avoid breaking with new defaults
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="2.6.34.7"
+BR2_DEFAULT_KERNEL_HEADERS="2.6.34.7"
 
 #
 # Host utilities
diff --git a/configs/fdi3250_defconfig b/configs/fdi3250_defconfig
index 1fd0b05..b1c6684 100644
--- a/configs/fdi3250_defconfig
+++ b/configs/fdi3250_defconfig
@@ -11,6 +11,10 @@ BR2_ARM_EABI=y
 # that will compile a kernel with ethernet working correctly
 BR2_GCC_VERSION_4_3_X=y
 
+# Lock down headers to avoid breaking with new defaults
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="2.6.34.7"
+BR2_DEFAULT_KERNEL_HEADERS="2.6.34.7"
 
 #
 # Host utilities
diff --git a/configs/phy3250_defconfig b/configs/phy3250_defconfig
index bc17d5c..e95546f 100644
--- a/configs/phy3250_defconfig
+++ b/configs/phy3250_defconfig
@@ -11,6 +11,10 @@ BR2_ARM_EABI=y
 # that will compile a kernel with ethernet working correctly
 BR2_GCC_VERSION_4_3_X=y
 
+# Lock down headers to avoid breaking with new defaults
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="2.6.34.7"
+BR2_DEFAULT_KERNEL_HEADERS="2.6.34.7"
 
 #
 # Host utilities