diff --git a/library/aesni.c b/library/aesni.c
index 83a5868..1ca3c3e 100644
--- a/library/aesni.c
+++ b/library/aesni.c
@@ -100,7 +100,7 @@
     asm( "movdqu    (%3), %%xmm0    \n\t" // load input
          "movdqu    (%1), %%xmm1    \n\t" // load round key 0
          "pxor      %%xmm1, %%xmm0  \n\t" // round 0
-         "addq      $16, %1         \n\t" // point to next round key
+         "add       $16, %1         \n\t" // point to next round key
          "subl      $1, %0          \n\t" // normal rounds = nr - 1
          "test      %2, %2          \n\t" // mode?
          "jz        2f              \n\t" // 0 = decrypt
@@ -108,7 +108,7 @@
          "1:                        \n\t" // encryption loop
          "movdqu    (%1), %%xmm1    \n\t" // load round key
          AESENC     xmm1_xmm0      "\n\t" // do round
-         "addq      $16, %1         \n\t" // point to next round key
+         "add       $16, %1         \n\t" // point to next round key
          "subl      $1, %0          \n\t" // loop
          "jnz       1b              \n\t"
          "movdqu    (%1), %%xmm1    \n\t" // load round key
@@ -118,7 +118,7 @@
          "2:                        \n\t" // decryption loop
          "movdqu    (%1), %%xmm1    \n\t"
          AESDEC     xmm1_xmm0      "\n\t" // do round
-         "addq      $16, %1         \n\t"
+         "add       $16, %1         \n\t"
          "subl      $1, %0          \n\t"
          "jnz       2b              \n\t"
          "movdqu    (%1), %%xmm1    \n\t" // load round key