diff --git a/src/codegen/codegen_x86-64.c b/src/codegen/codegen_x86-64.c
index 7fd1ddd47..44e4ffa00 100644
--- a/src/codegen/codegen_x86-64.c
+++ b/src/codegen/codegen_x86-64.c
@@ -534,7 +534,7 @@ int opcode_0f_modrm[256] =
         1, 1, 1, 1,  0, 0, 0, 0,  0, 0, 0, 0,  0, 1, 0, 1, /*00*/
         0, 0, 0, 0,  0, 0, 0, 0,  1, 1, 1, 1,  1, 1, 1, 1, /*10*/
         1, 1, 1, 1,  1, 1, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*20*/
-        0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*30*/
+        0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 1, /*30*/
 
         1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1, /*40*/
         0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*50*/
diff --git a/src/codegen_new/codegen.c b/src/codegen_new/codegen.c
index f1b1ada7c..103d14de0 100644
--- a/src/codegen_new/codegen.c
+++ b/src/codegen_new/codegen.c
@@ -372,7 +372,7 @@ static uint8_t opcode_0f_modrm[256] =
         1, 1, 1, 1,  0, 0, 0, 0,  0, 0, 0, 0,  0, 1, 0, 1, /*00*/
         0, 0, 0, 0,  0, 0, 0, 0,  1, 1, 1, 1,  1, 1, 1, 1, /*10*/
         1, 1, 1, 1,  1, 1, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*20*/
-        0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*30*/
+        0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 1, /*30*/
 
         1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1, /*40*/
         0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0, /*50*/