diff --git a/test cases/failing/79 non ascii in ascii encoded configure file/config9.h.in b/test cases/failing/79 non ascii in ascii encoded configure file/config9.h.in
new file mode 100644
index 000000000..323bec64a
--- /dev/null
+++ b/test cases/failing/79 non ascii in ascii encoded configure file/config9.h.in	
@@ -0,0 +1 @@
+#define MESSAGE "@var@"
diff --git a/test cases/failing/79 non ascii in ascii encoded configure file/meson.build b/test cases/failing/79 non ascii in ascii encoded configure file/meson.build
new file mode 100644
index 000000000..846daaf89
--- /dev/null
+++ b/test cases/failing/79 non ascii in ascii encoded configure file/meson.build	
@@ -0,0 +1,10 @@
+project('non acsii to ascii encoding', 'c')
+# Writing a non ASCII character with a ASCII encoding should fail
+conf9 = configuration_data()
+conf9.set('var', 'д')
+configure_file(
+  input : 'config9.h.in',
+  output : '@BASENAME@',
+  encoding : 'ascii',
+  configuration : conf9
+)