diff --git a/libfreerdp/codec/dsp.c b/libfreerdp/codec/dsp.c
index 22b2d3423..ea1ea5a7d 100644
--- a/libfreerdp/codec/dsp.c
+++ b/libfreerdp/codec/dsp.c
@@ -31,6 +31,7 @@
 #include <freerdp/types.h>
 #include <freerdp/codec/dsp.h>
 
+#if !defined(WITH_DSP_FFMPEG)
 #if defined(WITH_GSM)
 #include <gsm/gsm.h>
 #endif
@@ -39,10 +40,6 @@
 #include <lame/lame.h>
 #endif
 
-#if defined(WITH_DSP_FFMPEG)
-#include "dsp_ffmpeg.h"
-#endif
-
 #if defined(WITH_FAAD2)
 #include <neaacdec.h>
 #endif
@@ -51,8 +48,14 @@
 #include <faac.h>
 #endif
 
+#else
+#include "dsp_ffmpeg.h"
+#endif
+
 #define TAG FREERDP_TAG("dsp")
 
+#if !defined(WITH_DSP_FFMPEG)
+
 union _ADPCM
 {
 	struct
@@ -923,6 +926,8 @@ static BOOL freerdp_dsp_encode_ms_adpcm(FREERDP_DSP_CONTEXT* context, const BYTE
 	return TRUE;
 }
 
+#endif
+
 FREERDP_DSP_CONTEXT* freerdp_dsp_context_new(BOOL encoder)
 {
 #if defined(WITH_DSP_FFMPEG)