diff --git a/pkgs/os-specific/linux/kernel/config-2.6.28-x86_64-smp b/pkgs/os-specific/linux/kernel/config-2.6.28-x86_64-smp
index cb79ec2cc43..7bc650dd06a 100644
--- a/pkgs/os-specific/linux/kernel/config-2.6.28-x86_64-smp
+++ b/pkgs/os-specific/linux/kernel/config-2.6.28-x86_64-smp
@@ -3319,7 +3319,7 @@ CONFIG_SDIO_UART=m
 #
 # MMC/SD/SDIO Host Controller Drivers
 #
-# CONFIG_MMC_SDHCI is not set
+CONFIG_MMC_SDHCI=m
 CONFIG_MMC_WBSD=m
 CONFIG_MMC_TIFM_SD=m
 # CONFIG_MMC_SPI is not set
diff --git a/pkgs/os-specific/linux/kernel/config-2.6.29-x86_64-smp b/pkgs/os-specific/linux/kernel/config-2.6.29-x86_64-smp
index a14568f63e4..49480ce3d40 100644
--- a/pkgs/os-specific/linux/kernel/config-2.6.29-x86_64-smp
+++ b/pkgs/os-specific/linux/kernel/config-2.6.29-x86_64-smp
@@ -3405,7 +3405,7 @@ CONFIG_SDIO_UART=m
 #
 # MMC/SD/SDIO Host Controller Drivers
 #
-# CONFIG_MMC_SDHCI is not set
+CONFIG_MMC_SDHCI=m
 CONFIG_MMC_WBSD=m
 CONFIG_MMC_TIFM_SD=m
 # CONFIG_MMC_SPI is not set