diff --git a/src/clj_jtwig/standard_functions.clj b/src/clj_jtwig/standard_functions.clj
index a4a034f..4b3ed15 100644
--- a/src/clj_jtwig/standard_functions.clj
+++ b/src/clj_jtwig/standard_functions.clj
@@ -11,7 +11,7 @@
 ; :aliases, which should be a vector of strings containing one or more possible aliases for this function.
 
 (defonce standard-functions
-  {"blankIfNull"
+  {"blank_if_null"
    {:fn (fn [x]
           (if (nil? x) "" x))
     :aliases ["nonull"]}
@@ -91,14 +91,16 @@
    {:fn (fn [sequence]
           (sort < sequence))}
 
-   "sortDescending"
+   "sort_descending"
    {:fn (fn [sequence]
-          (sort > sequence))}
+          (sort > sequence))
+    :aliases ["sort_desc"]}
 
-   "sortBy"
+   "sort_by"
    {:fn (fn [coll k]
           (sort-by #(get % k) coll))}
 
-   "sortDescendingBy"
+   "sort_descending_by"
    {:fn (fn [coll k]
-          (sort-by #(get % k) #(compare %2 %1) coll))}})
+          (sort-by #(get % k) #(compare %2 %1) coll))
+    :aliases ["sort_desc_by"]}})
diff --git a/test/clj_jtwig/functions_test.clj b/test/clj_jtwig/functions_test.clj
index 7fc9342..46b0f37 100644
--- a/test/clj_jtwig/functions_test.clj
+++ b/test/clj_jtwig/functions_test.clj
@@ -254,7 +254,7 @@
 
 (deftest standard-functions
   (testing "Standard functions were added properly"
-    (is (true? (function-exists? "blankIfNull")))
+    (is (true? (function-exists? "blank_if_null")))
     (is (true? (function-exists? "butlast")))
     (is (true? (function-exists? "dump")))
     (is (true? (function-exists? "nth")))
@@ -265,16 +265,16 @@
     (is (true? (function-exists? "rest")))
     (is (true? (function-exists? "second")))
     (is (true? (function-exists? "sort")))
-    (is (true? (function-exists? "sortDescending")))
-    (is (true? (function-exists? "sortBy")))
-    (is (true? (function-exists? "sortDescendingBy"))))
+    (is (true? (function-exists? "sort_descending")))
+    (is (true? (function-exists? "sort_by")))
+    (is (true? (function-exists? "sort_descending_by"))))
 
-  (testing "blankIfNull"
-    (is (= (render "{{ a|blankIfNull }}" nil)
+  (testing "blank_if_null"
+    (is (= (render "{{ a|blank_if_null }}" nil)
            ""))
-    (is (= (render "{{ a|blankIfNull }}" {:a nil})
+    (is (= (render "{{ a|blank_if_null }}" {:a nil})
            ""))
-    (is (= (render "{{ a|blankIfNull }}" {:a "foo"})
+    (is (= (render "{{ a|blank_if_null }}" {:a "foo"})
            "foo"))
     (is (= (render "{{ a|nonull }}" nil)
            "")))
@@ -333,14 +333,14 @@
     (is (= (render "{{ [2, 1, 5, 3, 4]|sort }}" nil)
            "[1, 2, 3, 4, 5]")))
 
-  (testing "sortDescending"
-    (is (= (render "{{ [2, 1, 5, 3, 4]|sortDescending }}" nil)
+  (testing "sort_descending"
+    (is (= (render "{{ [2, 1, 5, 3, 4]|sort_descending }}" nil)
            "[5, 4, 3, 2, 1]")))
 
-  (testing "sortBy"
-    (is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sortBy(\"a\") }}" nil)
+  (testing "sort_by"
+    (is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sort_by(\"a\") }}" nil)
            "[{a=1}, {a=2}, {a=3}, {a=4}, {a=5}]")))
 
-  (testing "sortDescendingBy"
-    (is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sortDescendingBy(\"a\") }}" nil)
+  (testing "sort_descending_by"
+    (is (= (render "{{ [{a: 2}, {a: 1}, {a: 5}, {a: 3}, {a: 4}]|sort_descending_by(\"a\") }}" nil)
            "[{a=5}, {a=4}, {a=3}, {a=2}, {a=1}]"))))