diff --git a/reference/gmagick/gmagick/getimageblueprimary.xml b/reference/gmagick/gmagick/getimageblueprimary.xml
index 54b0f5f408..7634e9d2d5 100644
--- a/reference/gmagick/gmagick/getimageblueprimary.xml
+++ b/reference/gmagick/gmagick/getimageblueprimary.xml
@@ -36,7 +36,7 @@
      <term><parameter>y</parameter></term>
      <listitem>
       <para>
-      The chromaticity blue primary x-point.
+      The chromaticity blue primary y-point.
       </para>
      </listitem>
     </varlistentry>
diff --git a/reference/imagick/imagick/getimageblueprimary.xml b/reference/imagick/imagick/getimageblueprimary.xml
index 9c37e566f9..84b8c57fc1 100644
--- a/reference/imagick/imagick/getimageblueprimary.xml
+++ b/reference/imagick/imagick/getimageblueprimary.xml
@@ -35,7 +35,7 @@
      <term><parameter>y</parameter></term>
      <listitem>
       <para>
-      The chromaticity blue primary x-point.
+      The chromaticity blue primary y-point.
       </para>
      </listitem>
     </varlistentry>