diff --git a/doc/man/man1/plambda.1 b/doc/man/man1/plambda.1
index a2d89983..12b964cf 100644
--- a/doc/man/man1/plambda.1
+++ b/doc/man/man1/plambda.1
@@ -63,7 +63,7 @@ number of pixels in the image
 relative horizontal coordinate of the pixel
 .TP
 :y
-relative horizontal coordinate of the pixel
+relative vertical coordinate of the pixel
 .TP
 :r
 relative distance to the center of the image
diff --git a/src/flambda.c b/src/flambda.c
index 308564b9..a38208aa 100644
--- a/src/flambda.c
+++ b/src/flambda.c
@@ -41,7 +41,7 @@
 //		:h	heigth of the image
 //		:n	number of pixels in the image
 //		:x	relative horizontal coordinate of the pixel
-//		:y	relative horizontal coordinate of the pixel
+//		:y	relative vertical coordinate of the pixel
 //		:r	relative distance to the center of the image
 //		:t	relative angle from the center of the image
 //		:I	horizontal coordinate of the pixel (centered)
@@ -2646,7 +2646,7 @@ verbosity>0?
 " :h\theigth of the image\n"
 " :n\tnumber of pixels in the image\n"
 " :x\trelative horizontal coordinate of the pixel\n"
-" :y\trelative horizontal coordinate of the pixel\n"
+" :y\trelative vertical coordinate of the pixel\n"
 " :r\trelative distance to the center of the image\n"
 " :t\trelative angle from the center of the image\n"
 " :I\thorizontal coordinate of the pixel (centered)\n"
diff --git a/src/misc/older/views/symflow/plambda.c b/src/misc/older/views/symflow/plambda.c
index c9bd8210..3d38adeb 100644
--- a/src/misc/older/views/symflow/plambda.c
+++ b/src/misc/older/views/symflow/plambda.c
@@ -35,7 +35,7 @@
 //		:h	heigth of the image
 //		:n	number of pixels in the image
 //		:x	relative horizontal coordinate of the pixel
-//		:y	relative horizontal coordinate of the pixel
+//		:y	relative vertical coordinate of the pixel
 //		:r	relative distance to the center of the image
 //		:t	relative angle from the center of the image
 //
diff --git a/src/misc/unused/qlambda.c b/src/misc/unused/qlambda.c
index 4eb75aa4..d5e7b11d 100644
--- a/src/misc/unused/qlambda.c
+++ b/src/misc/unused/qlambda.c
@@ -35,7 +35,7 @@
 //		:h	heigth of the image
 //		:n	number of pixels in the image
 //		:x	relative horizontal coordinate of the pixel
-//		:y	relative horizontal coordinate of the pixel
+//		:y	relative vertical coordinate of the pixel
 //		:r	relative distance to the center of the image
 //		:t	relative angle from the center of the image
 //
diff --git a/src/plambda.c b/src/plambda.c
index 42c67b6e..1ca9c338 100644
--- a/src/plambda.c
+++ b/src/plambda.c
@@ -41,7 +41,7 @@
 //		:h	heigth of the image
 //		:n	number of pixels in the image
 //		:x	relative horizontal coordinate of the pixel
-//		:y	relative horizontal coordinate of the pixel
+//		:y	relative vertical coordinate of the pixel
 //		:r	relative distance to the center of the image
 //		:t	relative angle from the center of the image
 //		:I	horizontal coordinate of the pixel (centered)
@@ -3240,7 +3240,7 @@ Predefined variables (always preceeded by a colon):\n\
  :h\theigth of the image\n\
  :n\tnumber of pixels in the image\n\
  :x\trelative horizontal coordinate of the pixel\n\
- :y\trelative horizontal coordinate of the pixel\n\
+ :y\trelative vertical coordinate of the pixel\n\
  :r\trelative distance to the center of the image\n\
  :t\trelative angle from the center of the image\n\
  :I\thorizontal coordinate of the pixel (centered)\n\