diff --git a/testsuite/reftests/Makefile.am b/testsuite/reftests/Makefile.am
index f69b100e39..85c8994187 100644
--- a/testsuite/reftests/Makefile.am
+++ b/testsuite/reftests/Makefile.am
@@ -120,6 +120,9 @@ testdata = \
 	cellrenderer-pixbuf-stock-rtl.css \
 	cellrenderer-pixbuf-stock-rtl.ui \
 	cellrenderer-pixbuf-stock-rtl.ref.ui \
+	css-currentcolor-alpha.css \
+	css-currentcolor-alpha.ui \
+	css-currentcolor-alpha.ref.ui \
 	css-match-class.css \
 	css-match-class.ref.ui \
 	css-match-class.ui \
diff --git a/testsuite/reftests/css-currentcolor-alpha.css b/testsuite/reftests/css-currentcolor-alpha.css
new file mode 100644
index 0000000000..5af202e55b
--- /dev/null
+++ b/testsuite/reftests/css-currentcolor-alpha.css
@@ -0,0 +1,9 @@
+@import "reset-to-defaults.css";
+
+GtkWindow {
+  color: alpha(currentColor, 0.0);
+}
+
+#reference {
+  color: transparent;
+}
diff --git a/testsuite/reftests/css-currentcolor-alpha.ref.ui b/testsuite/reftests/css-currentcolor-alpha.ref.ui
new file mode 100644
index 0000000000..9d475c3aaa
--- /dev/null
+++ b/testsuite/reftests/css-currentcolor-alpha.ref.ui
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <!-- interface-requires gtk+ 3.0 -->
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <property name="name">reference</property>
+    <child>
+      <placeholder/>
+    </child>
+  </object>
+</interface>
diff --git a/testsuite/reftests/css-currentcolor-alpha.ui b/testsuite/reftests/css-currentcolor-alpha.ui
new file mode 100644
index 0000000000..51595c7894
--- /dev/null
+++ b/testsuite/reftests/css-currentcolor-alpha.ui
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <!-- interface-requires gtk+ 3.0 -->
+  <object class="GtkWindow" id="window1">
+    <property name="can_focus">False</property>
+    <property name="type">popup</property>
+    <child>
+      <placeholder/>
+    </child>
+  </object>
+</interface>