diff --git a/src/fm95.c b/src/fm95.c
index 2b2835e..1f6b08d 100644
--- a/src/fm95.c
+++ b/src/fm95.c
@@ -527,7 +527,7 @@ int main(int argc, char **argv) {
 			
 			float mpower = measure_mpx(&power, output[i]*75000);
 			if(mpower > mpx_power) {
-				output[i] -= (mono/power);
+				output[i] -= (mono/mpower);
 				output[i] -= ((stereo*stereo_carrier)/mpower);
 			}