diff --git a/build_tests/c-simple/simple.c b/build_tests/c-simple/simple.c
new file mode 100644
index 0000000..ee61f1f
--- /dev/null
+++ b/build_tests/c-simple/simple.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+    printf("This is a simple C program\n");
+}
diff --git a/build_tests/c-simple/spec.rb b/build_tests/c-simple/spec.rb
index 2cc635e..512f4d1 100644
--- a/build_tests/c-simple/spec.rb
+++ b/build_tests/c-simple/spec.rb
@@ -1,2 +1,5 @@
 it 'builds a C program with one source file' do
+  env = Rscons::Environment.new
+  env.Program('simple', 'simple.c')
+  `./simple`.should =~ /This is a simple C program/
 end