diff --git a/math/dec_test.go b/math/dec_test.go
index ae897c3ba8cd..bf7d73492088 100644
--- a/math/dec_test.go
+++ b/math/dec_test.go
@@ -671,7 +671,7 @@ func BenchmarkLegacyQuoRoundupMut(b *testing.B) {
 func TestFormatDec(t *testing.T) {
 	type decimalTest []string
 	var testcases []decimalTest
-	raw, err := os.ReadFile("../x/tx/textual/internal/testdata/decimals.json")
+	raw, err := os.ReadFile("./testdata/decimals.json")
 	require.NoError(t, err)
 	err = json.Unmarshal(raw, &testcases)
 	require.NoError(t, err)
diff --git a/math/testdata/decimals.json b/math/testdata/decimals.json
new file mode 100644
index 000000000000..3564b597d92b
--- /dev/null
+++ b/math/testdata/decimals.json
@@ -0,0 +1,47 @@
+[
+  ["0", "0"],
+  ["1", "1"],
+  ["12", "12"],
+  ["123", "123"],
+  ["1234", "1'234"],
+  ["0.1", "0.1"],
+  ["0.01", "0.01"],
+  ["0.001", "0.001"],
+  ["0.0001", "0.0001"],
+  ["0.00001", "0.00001"],
+  ["0.000001", "0.000001"],
+  ["0.0000001", "0.0000001"],
+  ["0.00000001", "0.00000001"],
+  ["0.000000001", "0.000000001"],
+  ["0.0000000001", "0.0000000001"],
+  ["0.00000000001", "0.00000000001"],
+  ["0.000000000001", "0.000000000001"],
+  ["0.0000000000001", "0.0000000000001"],
+  ["0.00000000000001", "0.00000000000001"],
+  ["0.000000000000001", "0.000000000000001"],
+  ["0.0000000000000001", "0.0000000000000001"],
+  ["0.00000000000000001", "0.00000000000000001"],
+  ["0.000000000000000001", "0.000000000000000001"],
+  ["0.100000000000000000", "0.1"],
+  ["0.010000000000000000", "0.01"],
+  ["0.001000000000000000", "0.001"],
+  ["0.000100000000000000", "0.0001"],
+  ["0.000010000000000000", "0.00001"],
+  ["0.000001000000000000", "0.000001"],
+  ["0.000000100000000000", "0.0000001"],
+  ["0.000000010000000000", "0.00000001"],
+  ["0.000000001000000000", "0.000000001"],
+  ["0.000000000100000000", "0.0000000001"],
+  ["0.000000000010000000", "0.00000000001"],
+  ["0.000000000001000000", "0.000000000001"],
+  ["0.000000000000100000", "0.0000000000001"],
+  ["0.000000000000010000", "0.00000000000001"],
+  ["0.000000000000001000", "0.000000000000001"],
+  ["0.000000000000000100", "0.0000000000000001"],
+  ["0.000000000000000010", "0.00000000000000001"],
+  ["0.000000000000000001", "0.000000000000000001"],
+  ["-10.0", "-10"],
+  ["-10000", "-10'000"],
+  ["-9999", "-9'999"],
+  ["-999999999999", "-999'999'999'999"]
+]