diff --git a/openair1/PHY/TOOLS/signal_energy.c b/openair1/PHY/TOOLS/signal_energy.c
index 39926a8315d85b2599f33945948d0faf4b973258..f9de85674e6a94eaba89ef4212c78e06ba80f4c4 100755
--- a/openair1/PHY/TOOLS/signal_energy.c
+++ b/openair1/PHY/TOOLS/signal_energy.c
@@ -67,6 +67,9 @@ int32_t subcarrier_energy(int32_t *input,uint32_t length, int32_t *subcarrier_en
     subcarrier_energy[i] = subcarrier_pwr*rx_power_correction;
   }
 
+  _mm_empty();
+  _m_empty();
+
   return i;
 }
 #endif
@@ -112,6 +115,9 @@ int32_t signal_energy(int32_t *input,uint32_t length)
   //  temp2<<=(2*shift_DC);
   temp -= temp2;
 
+  _mm_empty();
+  _m_empty();
+
   return((temp>0)?temp:1);
 }