diff --git a/core/SConscript.firmware b/core/SConscript.firmware
index 5620f6636..2da7e4b78 100644
--- a/core/SConscript.firmware
+++ b/core/SConscript.firmware
@@ -537,9 +537,15 @@ env.Replace(
 #
 
 PROTO_SOURCES_DIR = '../../../common/protob/'
+
+exclude_list = [PROTO_SOURCES_DIR + 'messages-bootloader.proto']
+if not THP:
+    exclude_list.append(PROTO_SOURCES_DIR+'messages-thp.proto')
+
 PROTO_SOURCES = Glob(PROTO_SOURCES_DIR + '*.proto',
-    exclude=[PROTO_SOURCES_DIR + 'messages-bootloader.proto']
+    exclude=exclude_list
 )
+
 qstr_protobuf = env.Command(
     target=[
         'genhdr/qstrdefs.protobuf.h',
diff --git a/core/SConscript.unix b/core/SConscript.unix
index 96fd4a60f..c40cb951f 100644
--- a/core/SConscript.unix
+++ b/core/SConscript.unix
@@ -578,9 +578,15 @@ env.Replace(
 #
 
 PROTO_SOURCES_DIR = '../../../common/protob/'
+
+exclude_list = [PROTO_SOURCES_DIR + 'messages-bootloader.proto']
+if not THP:
+    exclude_list.append(PROTO_SOURCES_DIR+'messages-thp.proto')
+
 PROTO_SOURCES = Glob(PROTO_SOURCES_DIR + '*.proto',
-    exclude=[PROTO_SOURCES_DIR + 'messages-bootloader.proto']
+    exclude=exclude_list
 )
+
 qstr_protobuf = env.Command(
     target=[
         'genhdr/qstrdefs.protobuf.h',