diff --git a/configs/broadwell b/configs/broadwell
index 9921ff8..a8aa58a 100644
--- a/configs/broadwell
+++ b/configs/broadwell
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/broadwell_ult b/configs/broadwell_ult
index 0860a1c..3507a41 100644
--- a/configs/broadwell_ult
+++ b/configs/broadwell_ult
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/haswell b/configs/haswell
index e4a5c04..d28168c 100644
--- a/configs/haswell
+++ b/configs/haswell
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/haswell_ult b/configs/haswell_ult
index d9c483e..3ba633a 100644
--- a/configs/haswell_ult
+++ b/configs/haswell_ult
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/ironlake b/configs/ironlake
index 8a4e66a..d29d71c 100644
--- a/configs/ironlake
+++ b/configs/ironlake
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/ivybridge_edp b/configs/ivybridge_edp
index 32ce3d6..257b59c 100644
--- a/configs/ivybridge_edp
+++ b/configs/ivybridge_edp
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/ivybridge_lvds b/configs/ivybridge_lvds
index 930a009..4327652 100644
--- a/configs/ivybridge_lvds
+++ b/configs/ivybridge_lvds
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/sandybridge b/configs/sandybridge
index 7d8075f..2bdce64 100644
--- a/configs/sandybridge
+++ b/configs/sandybridge
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= LVDS
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/skylake b/configs/skylake
index 4577c84..12ca514 100644
--- a/configs/skylake
+++ b/configs/skylake
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= Normal
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#
diff --git a/configs/skylake_ult b/configs/skylake_ult
index 5e67484..94d1161 100644
--- a/configs/skylake_ult
+++ b/configs/skylake_ult
@@ -2,4 +2,4 @@
 CONFIG_GFX_GMA_CPU_VARIANT	= ULT
 CONFIG_GFX_GMA_INTERNAL_PORT	= DP
 CONFIG_GFX_GMA_ANALOG_I2C_PORT	= PCH_DAC
-CONFIG_GFX_GMA_DEFAULT_MMIO	= 16#e000_0000#
+CONFIG_GFX_GMA_DEFAULT_MMIO	= 16\#e000_0000\#