diff --git a/libavcodec/aacenc_is.h b/libavcodec/aacenc_is.h
index abb9b32daf..55f5d6801e 100644
--- a/libavcodec/aacenc_is.h
+++ b/libavcodec/aacenc_is.h
@@ -25,8 +25,8 @@
  * @author Rostislav Pehlivanov ( atomnuker gmail com )
  */
 
-#ifndef AVCODEC_AACENC_INTENSITY_STEREO_H
-#define AVCODEC_AACENC_INTENSITY_STEREO_H
+#ifndef AVCODEC_AACENC_IS_H
+#define AVCODEC_AACENC_IS_H
 
 /** Frequency in Hz for lower limit of intensity stereo **/
 #define INT_STEREO_LOW_LIMIT 6100
@@ -44,4 +44,4 @@ struct is_error calc_is_encoding_err(AACEncContext *s, ChannelElement *cpe,
                                      float ener1, float ener01, int phase);
 void search_for_is(AACEncContext *s, AVCodecContext *avctx, ChannelElement *cpe);
 
-#endif /* AVCODEC_AACENC_INTENSITY_STEREO_H */
+#endif /* AVCODEC_AACENC_IS_H */
diff --git a/libavcodec/aacenc_quantization.h b/libavcodec/aacenc_quantization.h
index a96762234a..64093b8d66 100644
--- a/libavcodec/aacenc_quantization.h
+++ b/libavcodec/aacenc_quantization.h
@@ -25,6 +25,9 @@
  * @author Rostislav Pehlivanov ( atomnuker gmail com )
  */
 
+#ifndef AVCODEC_AACENC_QUANTIZATION_H
+#define AVCODEC_AACENC_QUANTIZATION_H
+
 #include "aactab.h"
 #include "aacenc.h"
 #include "aacenctab.h"
@@ -253,3 +256,5 @@ static inline void quantize_and_encode_band(struct AACEncContext *s, PutBitConte
     quantize_and_encode_band_cost(s, pb, in, out, NULL, size, scale_idx, cb, lambda,
                                   INFINITY, NULL, rtz);
 }
+
+#endif /* AVCODEC_AACENC_QUANTIZATION_H */