diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c
index c682c800caaf32f5ea3535839713ce45258dfe91..60aa5fc2529467431af04da238310980e4c1b66a 100644
--- a/src/esx/esx_driver.c
+++ b/src/esx/esx_driver.c
@@ -3981,7 +3981,7 @@ esxNodeGetFreeMemory(virConnectPtr conn)
         goto cleanup;
     }
 
-    usageBytes = (unsigned long long) (memoryUsage->value) * 1048576;
+    usageBytes = (unsigned long long)(memoryUsage->value) * 1048576;
     result = memorySize->value - usageBytes;
 
  cleanup: