diff --git a/src/simulation/simtools/Mix.cpp b/src/simulation/simtools/Mix.cpp
index e8cead74d..e4ebbdd50 100755
--- a/src/simulation/simtools/Mix.cpp
+++ b/src/simulation/simtools/Mix.cpp
@@ -17,7 +17,7 @@ int Tool_Mix::Perform(Simulation * sim, Particle * cpart, int x, int y, float st
 	if(rand() % 100 != 0)
 		return 0;
 
-	int distance = (int)(std::pow(strength, .5) * 10);
+	int distance = (int)(std::pow(strength, .5f) * 10);
 
 	if(!(sim->elements[thisPart&0xFF].Properties & TYPE_PART))
 		return 0;