diff --git a/src/mainboard/google/volteer/variants/collis/include/variant/ec.h b/src/mainboard/google/volteer/variants/collis/include/variant/ec.h
index 7a2a6ff8b7..dac67ca295 100644
--- a/src/mainboard/google/volteer/variants/collis/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/collis/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif
diff --git a/src/mainboard/google/volteer/variants/copano/include/variant/ec.h b/src/mainboard/google/volteer/variants/copano/include/variant/ec.h
index 7a2a6ff8b7..dac67ca295 100644
--- a/src/mainboard/google/volteer/variants/copano/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/copano/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif
diff --git a/src/mainboard/google/volteer/variants/delbin/include/variant/ec.h b/src/mainboard/google/volteer/variants/delbin/include/variant/ec.h
index 7a2a6ff8b7..dac67ca295 100644
--- a/src/mainboard/google/volteer/variants/delbin/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/delbin/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif
diff --git a/src/mainboard/google/volteer/variants/eldrid/include/variant/ec.h b/src/mainboard/google/volteer/variants/eldrid/include/variant/ec.h
index 7a2a6ff8b7..dac67ca295 100644
--- a/src/mainboard/google/volteer/variants/eldrid/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/eldrid/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif
diff --git a/src/mainboard/google/volteer/variants/voema/include/variant/ec.h b/src/mainboard/google/volteer/variants/voema/include/variant/ec.h
index 7a2a6ff8b7..dac67ca295 100644
--- a/src/mainboard/google/volteer/variants/voema/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/voema/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif
diff --git a/src/mainboard/google/volteer/variants/voxel/include/variant/ec.h b/src/mainboard/google/volteer/variants/voxel/include/variant/ec.h
index 4a9a461191..3e5ff526b5 100644
--- a/src/mainboard/google/volteer/variants/voxel/include/variant/ec.h
+++ b/src/mainboard/google/volteer/variants/voxel/include/variant/ec.h
@@ -5,4 +5,9 @@
 
 #include <baseboard/ec.h>
 
+/* Enable Tablet switch for Windows drivers */
+#if !CONFIG(CHROMEOS)
+#define EC_ENABLE_TBMC_DEVICE
+#endif
+
 #endif