diff --git a/lib/Target/CBackend/LLVMBuild.txt b/lib/Target/CBackend/LLVMBuild.txt
index 7cd420bfe02..0b1f885703d 100644
--- a/lib/Target/CBackend/LLVMBuild.txt
+++ b/lib/Target/CBackend/LLVMBuild.txt
@@ -25,7 +25,6 @@ add_to_library_groups = all-targets
 type = Library
 name = CBackendCodeGen
 parent = CBackend
-library_name = CBackend
 required_libraries = Analysis CBackendInfo CodeGen Core MC Scalar Support Target TransformUtils
 add_to_library_groups = CBackend
 
diff --git a/lib/Target/CppBackend/LLVMBuild.txt b/lib/Target/CppBackend/LLVMBuild.txt
index 447795f3b88..79ad4c1f544 100644
--- a/lib/Target/CppBackend/LLVMBuild.txt
+++ b/lib/Target/CppBackend/LLVMBuild.txt
@@ -25,7 +25,6 @@ add_to_library_groups = all-targets
 type = Library
 name = CppBackendCodeGen
 parent = CppBackend
-library_name = CppBackend
 required_libraries = Core CppBackendInfo Support Target
 add_to_library_groups = CppBackend