diff --git a/dlls/user32/tests/input.c b/dlls/user32/tests/input.c
index d662d6f7a88..0d7c6d6ebeb 100644
--- a/dlls/user32/tests/input.c
+++ b/dlls/user32/tests/input.c
@@ -1635,6 +1635,9 @@ static const struct tounicode_tests
     { 0, ctrl, '^', 1, {0x1e}},
     { 0, ctrl, '_', 1, {0x1f}},
     { 0, ctrl, '`', 0, {}},
+    { VK_SPACE, 0, 0, 1, {' ',0}},
+    { VK_SPACE, shift, 0, 1, {' ',0}},
+    { VK_SPACE, ctrl, 0, 1, {' ',0}},
 };
 
 static void test_ToUnicode(void)