diff --git a/src/rf_jammer/rf_jammer.c b/src/rf_jammer/rf_jammer.c
index 1c6451b..2e8caaf 100644
--- a/src/rf_jammer/rf_jammer.c
+++ b/src/rf_jammer/rf_jammer.c
@@ -134,7 +134,6 @@ void printhelp(char* argv[])
 }
 
 #define BUFFER_SAMPLES_SIZE (2048*8)
-#define PI 3.1415926535897932384626433832795
 
 int main(int argc, char* argv[])
 {