diff --git a/llvm/tools/llvm-c-test/llvm-c-test.h b/llvm/tools/llvm-c-test/llvm-c-test.h
index 2a70904..cf9a0f9 100644
--- a/llvm/tools/llvm-c-test/llvm-c-test.h
+++ b/llvm/tools/llvm-c-test/llvm-c-test.h
@@ -35,6 +35,9 @@
 // disassemble.c
 int llvm_disassemble(void);
 
+// debuginfo.c
+int llvm_test_dibuilder(void);
+
 // metadata.c
 int llvm_add_named_metadata_operand(void);
 int llvm_set_metadata(void);