diff --git a/intern/cycles/util/util_system.cpp b/intern/cycles/util/util_system.cpp
index 2c7abbaacbb..87d885c44cf 100644
--- a/intern/cycles/util/util_system.cpp
+++ b/intern/cycles/util/util_system.cpp
@@ -90,15 +90,17 @@ int system_cpu_thread_count()
 }
 
 unsigned short system_cpu_process_groups(unsigned short max_groups,
-                                         unsigned short *grpups)
+                                         unsigned short *groups)
 {
 #ifdef _WIN32
 	unsigned short group_count = max_groups;
-	if(!GetProcessGroupAffinity(GetCurrentProcess(), &group_count, grpups)) {
+	if(!GetProcessGroupAffinity(GetCurrentProcess(), &group_count, groups)) {
 		return 0;
 	}
 	return group_count;
 #else
+	(void) max_groups;
+	(void) groups;
 	return 0;
 #endif
 }