diff --git a/simd/jfdctfst-altivec.c b/simd/jfdctfst-altivec.c
index 0c3687f8..3556ab56 100644
--- a/simd/jfdctfst-altivec.c
+++ b/simd/jfdctfst-altivec.c
@@ -106,7 +106,7 @@ jsimd_fdct_ifast_altivec (DCTELEM *data)
   __vector unsigned short
     pre_multiply_scale_bits = { __8X(PRE_MULTIPLY_SCALE_BITS) };
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows */
 
   row0 = *(__vector short *)&data[0];
   row1 = *(__vector short *)&data[8];
@@ -130,7 +130,7 @@ jsimd_fdct_ifast_altivec (DCTELEM *data)
 
   DO_FDCT();
 
-  /* Pass 2: process columns. */
+  /* Pass 2: process columns */
 
   TRANSPOSE(out, row);
 
diff --git a/simd/jfdctint-altivec.c b/simd/jfdctint-altivec.c
index d1230c7c..7699b299 100644
--- a/simd/jfdctint-altivec.c
+++ b/simd/jfdctint-altivec.c
@@ -175,7 +175,7 @@ jsimd_fdct_islow_altivec (DCTELEM *data)
   __vector unsigned int descale_p1 = { __4X(DESCALE_P1) },
     descale_p2 = { __4X(DESCALE_P2) };
 
-  /* Pass 1: process rows. */
+  /* Pass 1: process rows */
 
   row0 = *(__vector short *)&data[0];
   row1 = *(__vector short *)&data[8];
@@ -199,7 +199,7 @@ jsimd_fdct_islow_altivec (DCTELEM *data)
 
   DO_FDCT_ROWS();
 
-  /* Pass 2: process columns. */
+  /* Pass 2: process columns */
 
   TRANSPOSE(out, row);
 
diff --git a/simd/jidctfst-altivec.c b/simd/jidctfst-altivec.c
index f7749b84..33acb83c 100644
--- a/simd/jidctfst-altivec.c
+++ b/simd/jidctfst-altivec.c
@@ -125,7 +125,7 @@ jsimd_idct_ifast_altivec (void * dct_table_, JCOEFPTR coef_block,
     pass1_bits3 = { __8X(PASS1_BITS + 3) };
   __vector signed char pb_centerjsamp = { __16X(CENTERJSAMPLE) };
 
-  /* Pass 1: process columns. */
+  /* Pass 1: process columns */
 
   col0 = *(__vector short *)&coef_block[0];
   col1 = *(__vector short *)&coef_block[8];
@@ -181,7 +181,7 @@ jsimd_idct_ifast_altivec (void * dct_table_, JCOEFPTR coef_block,
     TRANSPOSE(out, row);
   }
 
-  /* Pass 2: process rows. */
+  /* Pass 2: process rows */
 
   DO_IDCT(row);
 
diff --git a/simd/jidctint-altivec.c b/simd/jidctint-altivec.c
index 00c6c58d..d54479b7 100644
--- a/simd/jidctint-altivec.c
+++ b/simd/jidctint-altivec.c
@@ -207,7 +207,7 @@ jsimd_idct_islow_altivec (void * dct_table_, JCOEFPTR coef_block,
     const_bits = { __4X(CONST_BITS) };
   __vector signed char pb_centerjsamp = { __16X(CENTERJSAMPLE) };
 
-  /* Pass 1: process columns. */
+  /* Pass 1: process columns */
 
   col0 = *(__vector short *)&coef_block[0];
   col1 = *(__vector short *)&coef_block[8];
@@ -265,6 +265,8 @@ jsimd_idct_islow_altivec (void * dct_table_, JCOEFPTR coef_block,
     TRANSPOSE(out, row);
   }
 
+  /* Pass 2: process rows */
+
   DO_IDCT(row, 2);
 
   TRANSPOSE(out, col);