diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b20e33fb..4956277b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.22.10
+
+* Fix a bug in which `get-function()` would fail to find a dash-separated
+  function when passed a function name with underscores.
+
 ## 1.22.9
 
 * Include argument names when reporting range errors and selector parse errors.
diff --git a/lib/src/visitor/async_evaluate.dart b/lib/src/visitor/async_evaluate.dart
index 4d7721357..fbc142c34 100644
--- a/lib/src/visitor/async_evaluate.dart
+++ b/lib/src/visitor/async_evaluate.dart
@@ -331,8 +331,10 @@ class _EvaluateVisitor
 
         var callable = css
             ? PlainCssCallable(name.text)
-            : _addExceptionSpan(_callableNode,
-                () => _getFunction(name.text, namespace: module?.text));
+            : _addExceptionSpan(
+                _callableNode,
+                () => _getFunction(name.text.replaceAll("_", "-"),
+                    namespace: module?.text));
         if (callable != null) return SassFunction(callable);
 
         throw "Function not found: $name";
diff --git a/lib/src/visitor/evaluate.dart b/lib/src/visitor/evaluate.dart
index d771c817f..b8b05f9d4 100644
--- a/lib/src/visitor/evaluate.dart
+++ b/lib/src/visitor/evaluate.dart
@@ -5,7 +5,7 @@
 // DO NOT EDIT. This file was generated from async_evaluate.dart.
 // See tool/grind/synchronize.dart for details.
 //
-// Checksum: c8527e9c89f7ebbab760b62b70da66d1b01b2bf3
+// Checksum: fdeda387299e1ad0e9d50f22ae32ab0cf1ff6e30
 //
 // ignore_for_file: unused_import
 
@@ -339,8 +339,10 @@ class _EvaluateVisitor
 
         var callable = css
             ? PlainCssCallable(name.text)
-            : _addExceptionSpan(_callableNode,
-                () => _getFunction(name.text, namespace: module?.text));
+            : _addExceptionSpan(
+                _callableNode,
+                () => _getFunction(name.text.replaceAll("_", "-"),
+                    namespace: module?.text));
         if (callable != null) return SassFunction(callable);
 
         throw "Function not found: $name";
diff --git a/pubspec.yaml b/pubspec.yaml
index 2d85af5a4..6812c9b05 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: sass
-version: 1.22.9
+version: 1.22.10
 description: A Sass implementation in Dart.
 author: Sass Team
 homepage: https://github.com/sass/dart-sass