diff --git a/lldb/test/API/macosx/lc-note/kern-ver-str/Makefile b/lldb/test/API/macosx/lc-note/kern-ver-str/Makefile
index ad37346bbebc0..05d9552a80209 100644
--- a/lldb/test/API/macosx/lc-note/kern-ver-str/Makefile
+++ b/lldb/test/API/macosx/lc-note/kern-ver-str/Makefile
@@ -6,6 +6,6 @@ all: a.out create-empty-corefile
 
 create-empty-corefile:
 	$(MAKE) -f $(MAKEFILE_RULES) EXE=create-empty-corefile \
-		C_SOURCES=create-empty-corefile.c
+	    CXX=$(CC) CXX_SOURCES=create-empty-corefile.cpp
 
 include Makefile.rules