diff --git a/configure.ac b/configure.ac
index fa9c3b0..a124f42 100644
--- a/configure.ac
+++ b/configure.ac
@@ -314,7 +314,7 @@
 
     case "$asm_arch" in
     x86)
-        dnl ASM_FLAGS="-DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM"
+        ASM_FLAGS="-DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM"
         ASM_SOURCES='$(X86_SOURCES)'
         ASM_API='$(X86_API)'
         AC_MSG_RESULT([yes, x86])