diff --git a/test_problems/Makefile.in b/test_problems/Makefile.in
index 54ab09526..d37229c44 100644
--- a/test_problems/Makefile.in
+++ b/test_problems/Makefile.in
@@ -62,8 +62,9 @@ test:
 	@ cd CpJump;               @MAKE@ -s test
 	@ cd mixGasTransport;      @MAKE@ -s test
 	@ cd multiGasTransport;    @MAKE@ -s test
-ifeq ($(test_cathermo),1)
-	@ cd pureFluidTest; @MAKE@  -s test
+ifeq ($(test_pure_fluids),1)
+	@ cd pureFluidTest;        @MAKE@  -s test
+	@ cd rankine_democxx;      @MAKE@  -s test
 endif
 ifeq ($(test_ck),1)
 	@ cd ck2cti_test;  @MAKE@ -s test