diff --git a/libavcodec/ac3enc_fixed.c b/libavcodec/ac3enc_fixed.c
index 9d39026dd5..f10c3b5465 100644
--- a/libavcodec/ac3enc_fixed.c
+++ b/libavcodec/ac3enc_fixed.c
@@ -43,6 +43,8 @@ static const AVClass ac3enc_class = {
     .version    = LIBAVUTIL_VERSION_INT,
 };
 
+static int normalize_samples(AC3EncodeContext *s);
+
 #include "ac3enc_template.c"
 
 
diff --git a/libavcodec/ac3enc_float.c b/libavcodec/ac3enc_float.c
index caa210d5ad..79839df6ce 100644
--- a/libavcodec/ac3enc_float.c
+++ b/libavcodec/ac3enc_float.c
@@ -86,16 +86,6 @@ av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s)
 }
 
 
-/*
- * Normalize the input samples.
- * Not needed for the floating-point encoder.
- */
-static int normalize_samples(AC3EncodeContext *s)
-{
-    return 0;
-}
-
-
 /*
  * Scale MDCT coefficients from float to 24-bit fixed-point.
  */
diff --git a/libavcodec/ac3enc_template.c b/libavcodec/ac3enc_template.c
index 9dec9ae9cf..0b23b964ac 100644
--- a/libavcodec/ac3enc_template.c
+++ b/libavcodec/ac3enc_template.c
@@ -40,8 +40,6 @@
 
 static void scale_coefficients(AC3EncodeContext *s);
 
-static int normalize_samples(AC3EncodeContext *s);
-
 static void clip_coefficients(AudioDSPContext *adsp, CoefType *coef,
                               unsigned int len);
 
@@ -113,10 +111,10 @@ static void apply_mdct(AC3EncodeContext *s)
 #else
             s->ac3dsp.apply_window_int16(s->windowed_samples, input_samples,
                                          s->mdct_window, AC3_WINDOW_SIZE);
-#endif
 
             if (s->fixed_point)
                 block->coeff_shift[ch+1] = normalize_samples(s);
+#endif
 
             s->mdct.mdct_calcw(&s->mdct, block->mdct_coef[ch+1],
                                s->windowed_samples);