diff --git a/test/theme-parser-test.c b/test/theme-parser-test.c
index 8c1398e7..e6efcbb0 100644
--- a/test/theme-parser-test.c
+++ b/test/theme-parser-test.c
@@ -1437,6 +1437,21 @@ START_TEST(test_prepare_math_multiply) {
   ck_assert_int_eq(dist, 1024);
 }
 END_TEST
+START_TEST(test_prepare_math_modulo) {
+  widget wid;
+  wid.name = "window";
+  wid.state = "";
+  rofi_theme_parse_string("window  { width: calc( 255 % 4 % 3 % );}");
+  ck_assert_ptr_nonnull(rofi_theme);
+  // ck_assert_ptr_null ( rofi_theme->widgets );
+  ck_assert_ptr_null(rofi_theme->properties);
+  ck_assert_ptr_null(rofi_theme->parent);
+  ck_assert_str_eq(rofi_theme->name, "Root");
+  RofiDistance l = rofi_theme_get_distance(&wid, "width", 0);
+  int dist = distance_get_pixel(l, ROFI_ORIENTATION_HORIZONTAL);
+  ck_assert_int_eq(dist, 3);
+}
+END_TEST
 
 START_TEST(test_prepare_math_min) {
   widget wid;
@@ -1470,9 +1485,6 @@ START_TEST(test_prepare_math_max) {
 }
 END_TEST
 START_TEST(test_prepare_default) {
-  widget wid;
-  wid.name = "window";
-  wid.state = "";
   rofi_theme_parse_string("@import \"default\"");
 
   ck_assert_ptr_null(error_msg);
@@ -1706,6 +1718,7 @@ static Suite *theme_parser_suite(void) {
     tcase_add_test(tc_prepare_math, test_prepare_math_add);
     tcase_add_test(tc_prepare_math, test_prepare_math_subtract);
     tcase_add_test(tc_prepare_math, test_prepare_math_multiply);
+    tcase_add_test(tc_prepare_math, test_prepare_math_modulo);
     tcase_add_test(tc_prepare_math, test_prepare_math_floor);
     tcase_add_test(tc_prepare_math, test_prepare_math_ceil);
     tcase_add_test(tc_prepare_math, test_prepare_math_round);