diff --git a/src/Main.cpp b/src/Main.cpp
index 66d67e9..116952e 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -29,6 +29,7 @@ int main(void) {
 				++num;
 			}
 			bool isPrime = true;
+			#pragma omp barrier
 			for(auto i : primes) {
 				if(i > myNum / 2) break;
 				if(myNum % i == 0) {