diff --git a/src/ineqpy/api.py b/src/ineqpy/api.py
index 278dfcd..00b7b05 100644
--- a/src/ineqpy/api.py
+++ b/src/ineqpy/api.py
@@ -751,7 +751,7 @@ def avg_tax_rate(self, total_tax, total_base, weights=None):
 
         return inequality.avg_tax_rate(total_tax, total_base, weights, data)
 
-    def ratio_top_rest(
+    def top_rest(
         self, income, weights=None, data=None, top_percentage=10
     ):
         """Calculate the 10:90 Ratio.
@@ -793,4 +793,4 @@ def ratio_top_rest(
         if weights is None:
             weights = self.weights
 
-        return inequality.ratio_top_rest(income, weights, data, top_percentage)
+        return inequality.top_rest(income, weights, data, top_percentage)
diff --git a/src/ineqpy/inequality.py b/src/ineqpy/inequality.py
index b11348c..0eb5154 100644
--- a/src/ineqpy/inequality.py
+++ b/src/ineqpy/inequality.py
@@ -27,7 +27,7 @@
     "lorenz",
     "reynolds_smolensky",
     "theil",
-    "ratio_top_rest",
+    "top_rest",
     "hoover",
 ]
 
@@ -456,7 +456,7 @@ def avg_tax_rate(total_tax, total_base, weights=None, data=None):
     return res
 
 
-def ratio_top_rest(income, weights=None, data=None, top_percentage=10.0):
+def top_rest(income, weights=None, data=None, top_percentage=10.0):
     """Calculate the 10:90 Ratio.
 
     Calculates the quotient between the number of contributions from the top
diff --git a/tests/test_inequality.py b/tests/test_inequality.py
index 6e527c3..b5edab1 100644
--- a/tests/test_inequality.py
+++ b/tests/test_inequality.py
@@ -86,26 +86,26 @@ def test_theil_1d_1_w():
 def test_ratio_eqaulity():
     x = np.array([1, 9])
     w = np.array([9, 1])
-    obtained = inequality.ratio_top_rest(income=x, weights=w)
+    obtained = inequality.top_rest(income=x, weights=w)
     assert obtained == 1.0
 
 def test_ratio_equality_fracc():
     x = np.array([1, 9])
     w = np.array([.9, .1])
-    obtained = inequality.ratio_top_rest(income=x, weights=w)
+    obtained = inequality.top_rest(income=x, weights=w)
     assert obtained == 1.0
 
 def test_ratio_1d():
     x = np.array([57, 63, 81, 79, 88, 42, 3, 77, 89])
     w = np.array([9, 5, 2, 9, 5, 4, 5, 9, 9])
-    obtained = inequality.ratio_top_rest(income=x, weights=w)
+    obtained = inequality.top_rest(income=x, weights=w)
     expected = pytest.approx(0.15323043465128208)
     assert obtained == expected
 
 def test_ratio_2d():
     x = np.array([[57], [63], [81], [79], [88], [42], [3], [77], [89]])
     w = np.array([[9], [5], [2], [9], [5], [4], [5], [9], [9]])
-    obtained = inequality.ratio_top_rest(income=x, weights=w)
+    obtained = inequality.top_rest(income=x, weights=w)
     expected = pytest.approx(0.15323043465128208)
     assert obtained == expected
 
@@ -125,8 +125,8 @@ def test_ratio_weighted_eq_unweighted(n):
 
     assert len(xw) == np.sum(w)
 
-    weighted = inequality.ratio_top_rest(income=x, weights=w)
-    unweighted = inequality.ratio_top_rest(income=xw)
+    weighted = inequality.top_rest(income=x, weights=w)
+    unweighted = inequality.top_rest(income=xw)
     assert pytest.approx(weighted) == unweighted
 
 def test_ratio_unweighted():
@@ -137,7 +137,7 @@ def test_ratio_unweighted():
        97, 77, 94, 66, 84, 42, 39,  7, 24, 65, 52, 59, 52, 38, 27, 85, 43,
        26,  6, 93, 24, 48, 42, 50, 58, 89, 79, 94, 50,  2, 46, 82, 98, 69,
        9,  50, 33, 86, 77, 25, 39, 61, 78, 47, 29, 43, 20, 56, 35])
-    obtained = inequality.ratio_top_rest(x)
+    obtained = inequality.top_rest(x)
     expected = 0.22203712517848642
     assert pytest.approx(obtained) == expected