diff --git a/libavcodec/x86/cabac.h b/libavcodec/x86/cabac.h
index 0a68b7b7ef..a1c489e2d8 100644
--- a/libavcodec/x86/cabac.h
+++ b/libavcodec/x86/cabac.h
@@ -219,7 +219,7 @@ static av_always_inline int get_cabac_bypass_sign_x86(CABACContext *c, int val)
         "shl             $17, %k1       \n\t"
         "add           %%eax, %%eax     \n\t"
         "sub             %k1, %%eax     \n\t"
-        "cltd                           \n\t"
+        "cdq                            \n\t"
         "and           %%edx, %k1       \n\t"
         "add             %k1, %%eax     \n\t"
         "xor           %%edx, %%ecx     \n\t"
@@ -266,7 +266,7 @@ static av_always_inline int get_cabac_bypass_x86(CABACContext *c)
         "shl             $17, %k1       \n\t"
         "add           %%eax, %%eax     \n\t"
         "sub             %k1, %%eax     \n\t"
-        "cltd                           \n\t"
+        "cdq                            \n\t"
         "and           %%edx, %k1       \n\t"
         "add             %k1, %%eax     \n\t"
         "inc           %%edx            \n\t"
diff --git a/libavcodec/x86/mathops.h b/libavcodec/x86/mathops.h
index 9c48afeb20..1f049c0df9 100644
--- a/libavcodec/x86/mathops.h
+++ b/libavcodec/x86/mathops.h
@@ -100,7 +100,7 @@ __asm__ volatile(\
 #endif /* HAVE_I686 */
 
 #define MASK_ABS(mask, level)                   \
-    __asm__ ("cltd                   \n\t"      \
+    __asm__ ("cdq                    \n\t"      \
              "xorl %1, %0            \n\t"      \
              "subl %1, %0            \n\t"      \
              : "+a"(level), "=&d"(mask))