diff --git a/infer/tests/codetoanalyze/cpp/uninit/Makefile b/infer/tests/codetoanalyze/cpp/uninit/Makefile
index 5439b92be..f4213d5b2 100644
--- a/infer/tests/codetoanalyze/cpp/uninit/Makefile
+++ b/infer/tests/codetoanalyze/cpp/uninit/Makefile
@@ -13,7 +13,7 @@ CLANG_OPTIONS = -x c++ -std=c++11 -nostdinc++ -isystem$(MODELS_DIR)/cpp/include
 INFER_OPTIONS = --uninit --ml-buckets cpp --no-filtering --debug-exceptions --project-root $(TESTS_DIR)
 INFERPRINT_OPTIONS = --issues-tests
 
-SOURCES = uninit.mm
+SOURCES = uninit.cpp
 
 include $(TESTS_DIR)/clang.make
 
diff --git a/infer/tests/codetoanalyze/cpp/uninit/issues.exp b/infer/tests/codetoanalyze/cpp/uninit/issues.exp
index c9462208e..8d4e9b33a 100644
--- a/infer/tests/codetoanalyze/cpp/uninit/issues.exp
+++ b/infer/tests/codetoanalyze/cpp/uninit/issues.exp
@@ -1,4 +1,4 @@
-codetoanalyze/cpp/uninit/uninit.mm, bad1, 2, UNINITIALIZED_VALUE, []
-codetoanalyze/cpp/uninit/uninit.mm, branch1_FP, 11, UNINITIALIZED_VALUE, []
-codetoanalyze/cpp/uninit/uninit.mm, loop1_FP, 10, UNINITIALIZED_VALUE, []
-codetoanalyze/cpp/uninit/uninit.mm, no_init_return_bad, 2, UNINITIALIZED_VALUE, []
+codetoanalyze/cpp/uninit/uninit.cpp, bad1, 2, UNINITIALIZED_VALUE, []
+codetoanalyze/cpp/uninit/uninit.cpp, branch1_FP, 11, UNINITIALIZED_VALUE, []
+codetoanalyze/cpp/uninit/uninit.cpp, loop1_FP, 10, UNINITIALIZED_VALUE, []
+codetoanalyze/cpp/uninit/uninit.cpp, no_init_return_bad, 2, UNINITIALIZED_VALUE, []