diff --git a/mp3lib/decod386.c b/mp3lib/decod386.c
index 7739cdb8d1..a2dda57994 100644
--- a/mp3lib/decod386.c
+++ b/mp3lib/decod386.c
@@ -147,10 +147,10 @@ static int synth_1to1_r(real *bandPtr,int channel,unsigned char *out,int *pnt)
 }
 #endif
 
-synth_func_t synth_func;
+static synth_func_t synth_func;
 
 #if defined(CAN_COMPILE_X86_ASM)
-int synth_1to1_MMX( real *bandPtr,int channel,short * samples)
+static int synth_1to1_MMX( real *bandPtr,int channel,short * samples)
 {
     static short buffs[2][2][0x110];
     static int bo = 1;
diff --git a/mp3lib/layer3.c b/mp3lib/layer3.c
index 49516fbcfe..de954a3d12 100644
--- a/mp3lib/layer3.c
+++ b/mp3lib/layer3.c
@@ -1167,7 +1167,7 @@ static void III_antialias(real xr[SBLIMIT][SSLIMIT],struct gr_info_s *gr_info) {
  * III_hybrid
  */
  
-dct36_func_t dct36_func;
+static dct36_func_t dct36_func;
   
 static void III_hybrid(real fsIn[SBLIMIT][SSLIMIT],real tsOut[SSLIMIT][SBLIMIT],
    int ch,struct gr_info_s *gr_info)