diff --git a/libavcodec/dsputil.h b/libavcodec/dsputil.h
index 30779c34e6..baaba2bdfe 100644
--- a/libavcodec/dsputil.h
+++ b/libavcodec/dsputil.h
@@ -156,7 +156,7 @@ typedef struct DSPContext {
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
* this is an array[4][4] of motion compensation funcions for 4
- * horizontal blocksizes (2,4,8,16) and the 4 halfpel positions
+ * horizontal blocksizes (8,16) and the 4 halfpel positions
* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
@@ -168,7 +168,7 @@ typedef struct DSPContext {
/**
* Halfpel motion compensation with rounding (a+b+1)>>1.
* This is an array[4][4] of motion compensation functions for 4
- * horizontal blocksizes (2,4,8,16) and the 4 halfpel positions
+ * horizontal blocksizes (8,16) and the 4 halfpel positions
* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination into which the result is averaged (a+b+1)>>1
* @param pixels source