diff --git a/libcelt/ecintrin.h b/libcelt/ecintrin.h
index 1a7f168a74d744a20cc1137e694400a9a9d64226..5012917c9d1cc40cd716103ede13bae2af48e0e7 100644
--- a/libcelt/ecintrin.h
+++ b/libcelt/ecintrin.h
@@ -95,7 +95,7 @@ static __inline int ec_bsr(unsigned long _x){
 #elif defined(ENABLE_TI_DSPLIB)
 # include "dsplib.h"
 # define EC_CLZ0    (31)
-# define EC_CLZ(_x) (_lnorm(x))
+# define EC_CLZ(_x) (_lnorm(_x))
 #elif defined(__GNUC_PREREQ)
 # if __GNUC_PREREQ(3,4)
 #  if INT_MAX>=2147483647