diff --git a/reference/image/functions/imagesetinterpolation.xml b/reference/image/functions/imagesetinterpolation.xml
index 930bf1dc96..abc7c4b0a0 100644
--- a/reference/image/functions/imagesetinterpolation.xml
+++ b/reference/image/functions/imagesetinterpolation.xml
@@ -71,7 +71,7 @@
         </listitem>
         <listitem>
          <simpara>
-          <constant>IMG_CATMULLROM</constant>: Cubbic Hermite spline interpolation.
+          <constant>IMG_CATMULLROM</constant>: Cubic Hermite spline interpolation.
          </simpara>
         </listitem>
         <listitem>
@@ -160,7 +160,7 @@
 // Load an image
 $im = imagecreate(500, 500);
 
-// By default interpolation is IMG_BICUBIC_FIXED, switch 
+// By default interpolation is IMG_BILINEAR_FIXED, switch 
 // to use the 'Mitchell' filter:
 imagesetinterpolation($im, IMG_MITCHELL);