diff --git a/libavcodec/amrnbdata.h b/libavcodec/amrnbdata.h
index 2f21439896..fab9f759ad 100644
--- a/libavcodec/amrnbdata.h
+++ b/libavcodec/amrnbdata.h
@@ -1655,10 +1655,10 @@ static const float ir_filter_medium[AMR_SUBFRAME_SIZE] = {
  0.016998,  0.023804, -0.041779,  0.025696,  0.019989,
 };
 
-static const float *ir_filters_lookup[2]           = {
+static const float * const ir_filters_lookup[2]           = {
     ir_filter_strong,           ir_filter_medium
 };
-static const float *ir_filters_lookup_MODE_7k95[2] = {
+static const float * const ir_filters_lookup_MODE_7k95[2] = {
     ir_filter_strong_MODE_7k95, ir_filter_medium
 };
 
diff --git a/libavcodec/amrwbdata.h b/libavcodec/amrwbdata.h
index 1327b0237a..972c257d2a 100644
--- a/libavcodec/amrwbdata.h
+++ b/libavcodec/amrwbdata.h
@@ -1805,7 +1805,7 @@ static const float ir_filter_mid[64] = {
     -7.501221e-02,  2.920532e-02,  1.660156e-02,  7.751465e-02
 };
 
-static const float *ir_filters_lookup[2] = {
+static const float * const ir_filters_lookup[2] = {
     ir_filter_str, ir_filter_mid
 };