diff --git a/poincare/Makefile b/poincare/Makefile
index 0e368f2f5..45d66bdc9 100644
--- a/poincare/Makefile
+++ b/poincare/Makefile
@@ -180,6 +180,7 @@ tests_src += $(addprefix poincare/test/,\
   function_solver.cpp\
   helper.cpp\
   helpers.cpp\
+  infinity.cpp \
   integer.cpp\
   layout.cpp\
   layout_cursor.cpp\
diff --git a/poincare/test/infinity.cpp b/poincare/test/infinity.cpp
new file mode 100644
index 000000000..fa7c7c0f0
--- /dev/null
+++ b/poincare/test/infinity.cpp
@@ -0,0 +1,7 @@
+#include "helper.h"
+
+QUIZ_CASE(poincare_infinity_symbol) {
+  assert_parsed_expression_simplify_to("inf", "∞");
+  assert_parsed_expression_simplify_to("oo", "∞");
+  assert_parsed_expression_simplify_to("∞", "∞");
+}