diff --git a/libavcodec/diracdsp.c b/libavcodec/diracdsp.c
index 5c1c7068de..872faaef02 100644
--- a/libavcodec/diracdsp.c
+++ b/libavcodec/diracdsp.c
@@ -20,7 +20,7 @@
 
 #include "dsputil.h"
 #include "diracdsp.h"
-/* MMX_DISABLE #include "libavcodec/x86/diracdsp_mmx.h" */
+#include "libavcodec/x86/diracdsp_mmx.h"
 
 #define FILTER(src, stride)                                     \
     ((21*((src)[ 0*stride] + (src)[1*stride])                   \
@@ -197,5 +197,5 @@ void ff_diracdsp_init(DiracDSPContext *c)
     PIXFUNC(avg, 16);
     PIXFUNC(avg, 32);
 
-    /* MMX_DISABLE    if (HAVE_MMX) ff_diracdsp_init_mmx(c); */
+    if (HAVE_MMX) ff_diracdsp_init_mmx(c);
 }
diff --git a/libavcodec/x86/Makefile b/libavcodec/x86/Makefile
index 082d5e0f0e..308f071424 100644
--- a/libavcodec/x86/Makefile
+++ b/libavcodec/x86/Makefile
@@ -27,7 +27,7 @@ MMX-OBJS-$(CONFIG_RV40_DECODER)        += x86/rv40dsp.o                 \
 
 YASM-OBJS-$(CONFIG_VC1_DECODER)        += x86/vc1dsp_yasm.o
 
-#DISABLE_MMX YASM-OBJS-$(CONFIG_DIRAC_DECODER)      += x86/diracdsp_mmx.o x86/diracdsp_yasm.o
+YASM-OBJS-$(CONFIG_DIRAC_DECODER)      += x86/diracdsp_mmx.o x86/diracdsp_yasm.o
 
 MMX-OBJS-$(CONFIG_AC3DSP)              += x86/ac3dsp_mmx.o
 YASM-OBJS-$(CONFIG_AC3DSP)             += x86/ac3dsp.o