diff --git a/Source/TransformFunctions/arm_bitreversal_f16.c b/Source/TransformFunctions/arm_bitreversal_f16.c
index 9be52a15..ec762ca1 100755
--- a/Source/TransformFunctions/arm_bitreversal_f16.c
+++ b/Source/TransformFunctions/arm_bitreversal_f16.c
@@ -41,7 +41,7 @@ void arm_bitreversal_f16(
 float16_t * pSrc,
 uint16_t fftSize,
 uint16_t bitRevFactor,
-uint16_t * pBitRevTab)
+const uint16_t * pBitRevTab)
 {
    uint16_t fftLenBy2, fftLenBy2p1;
    uint16_t i, j;