diff --git a/gl/cogl-texture.c b/gl/cogl-texture.c
index 06ba7aece..2b25fafc0 100644
--- a/gl/cogl-texture.c
+++ b/gl/cogl-texture.c
@@ -2519,9 +2519,9 @@ _cogl_multitexture_unsliced_quad (float        x_1,
       out_tex_coords[0] =
         out_tex_coords[0] * (x_span->size - x_span->waste) / x_span->size;
       out_tex_coords[1] =
-        out_tex_coords[1] * (x_span->size - x_span->waste) / x_span->size;
+        out_tex_coords[1] * (y_span->size - y_span->waste) / y_span->size;
       out_tex_coords[2] =
-        out_tex_coords[2] * (y_span->size - y_span->waste) / y_span->size;
+        out_tex_coords[2] * (x_span->size - x_span->waste) / x_span->size;
       out_tex_coords[3] =
         out_tex_coords[3] * (y_span->size - y_span->waste) / y_span->size;
 
diff --git a/gles/cogl-texture.c b/gles/cogl-texture.c
index 1300b1f9f..661af232f 100644
--- a/gles/cogl-texture.c
+++ b/gles/cogl-texture.c
@@ -2634,9 +2634,9 @@ _cogl_multitexture_unsliced_quad (float        x1,
       out_tex_coords[0] =
         out_tex_coords[0] * (x_span->size - x_span->waste) / x_span->size;
       out_tex_coords[1] =
-        out_tex_coords[1] * (x_span->size - x_span->waste) / x_span->size;
+        out_tex_coords[1] * (y_span->size - y_span->waste) / y_span->size;
       out_tex_coords[2] =
-        out_tex_coords[2] * (y_span->size - y_span->waste) / y_span->size;
+        out_tex_coords[2] * (x_span->size - x_span->waste) / x_span->size;
       out_tex_coords[3] =
         out_tex_coords[3] * (y_span->size - y_span->waste) / y_span->size;
     }