diff --git a/doc/filters.texi b/doc/filters.texi
index 157adcda7b..e325bb519b 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -8930,7 +8930,7 @@ display aspect ratio
 @item
 Zoom-in up to 1.5 and pan at same time to some spot near center of picture:
 @example
-zoompan=z=min(zoom+0.0015\,1.5):d=700:x=if(gte(zoom\,1.5)\,x\,x+1/a):y=if(gte(zoom\,1.5)\,y\,y+1):s=640x360"
+"zoompan=z=min(zoom+0.0015\,1.5):d=700:x=if(gte(zoom\,1.5)\,x\,x+1/a):y=if(gte(zoom\,1.5)\,y\,y+1):s=640x360"
 @end example
 @end itemize