diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index 1b1b1728d74..e3bdd9c7048 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -50,7 +50,9 @@ function(add_public_tablegen_target target)
   if( TABLEGEN_OUTPUT )
     add_custom_target(${target}
       DEPENDS ${TABLEGEN_OUTPUT})
-    add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
+    if (LLVM_COMMON_DEPENDS)
+      add_dependencies(${target} ${LLVM_COMMON_DEPENDS})
+    endif ()
     set_target_properties(${target} PROPERTIES FOLDER "Tablegenning")
   endif( TABLEGEN_OUTPUT )
 endfunction()