diff --git a/reference/spl/splmaxheap/compare.xml b/reference/spl/splmaxheap/compare.xml
index c4043bd6e2..b1d019713f 100644
--- a/reference/spl/splmaxheap/compare.xml
+++ b/reference/spl/splmaxheap/compare.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>void</type><methodname>SplMaxHeap::compare</methodname>
+   <type>int</type><methodname>SplMaxHeap::compare</methodname>
    <methodparam><type>mixed</type><parameter>value1</parameter></methodparam>
    <methodparam><type>mixed</type><parameter>value2</parameter></methodparam>
   </methodsynopsis>
diff --git a/reference/spl/splminheap/compare.xml b/reference/spl/splminheap/compare.xml
index 1cf2e43df1..d00e3c4365 100644
--- a/reference/spl/splminheap/compare.xml
+++ b/reference/spl/splminheap/compare.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>void</type><methodname>SplMinHeap::compare</methodname>
+   <type>int</type><methodname>SplMinHeap::compare</methodname>
    <methodparam><type>mixed</type><parameter>value1</parameter></methodparam>
    <methodparam><type>mixed</type><parameter>value2</parameter></methodparam>
   </methodsynopsis>