diff --git a/Cantera/cxx/demos/Makefile.install b/Cantera/cxx/demos/Makefile.install
index 45cb5eac6..88f4ff33f 100644
--- a/Cantera/cxx/demos/Makefile.install
+++ b/Cantera/cxx/demos/Makefile.install
@@ -5,7 +5,10 @@
 # if script ctnew is not on the PATH, set this to the path to it.
 CTNEW = ctnew
 
-SRCS = kinetics1.cpp kinetics2.cpp flame1.cpp
+.SUFFIXES :
+.SUFFIXES : .mak
+
+SRCS = kinetics1.cpp flamespeed.cpp
 
 OBJS = $(SRCS:.cpp=.o)
 EXES = $(SRCS:.cpp=.x)