diff --git a/libc/utils/HdrGen/PrototypeTestGen/CMakeLists.txt b/libc/utils/HdrGen/PrototypeTestGen/CMakeLists.txt
--- a/libc/utils/HdrGen/PrototypeTestGen/CMakeLists.txt
+++ b/libc/utils/HdrGen/PrototypeTestGen/CMakeLists.txt
@@ -1,4 +1,4 @@
-add_tablegen(libc-prototype-testgen llvm-libc
+add_tablegen(libc-prototype-testgen LLVM_LIBC
   PrototypeTestGen.cpp
 )
 target_link_libraries(libc-prototype-testgen PRIVATE LibcTableGenUtil)
diff --git a/libc/utils/tools/WrapperGen/CMakeLists.txt b/libc/utils/tools/WrapperGen/CMakeLists.txt
--- a/libc/utils/tools/WrapperGen/CMakeLists.txt
+++ b/libc/utils/tools/WrapperGen/CMakeLists.txt
@@ -1,6 +1,6 @@
 set(LLVM_LINK_COMPONENTS Support)
 
-add_tablegen(libc-wrappergen llvm-libc
+add_tablegen(libc-wrappergen LLVM_LIBC
   Main.cpp
 )