diff --git a/ccache.pri b/ccache.pri
index 1389ff6..a8e8415 100755
--- a/ccache.pri
+++ b/ccache.pri
@@ -8,7 +8,7 @@
 !isEmpty(CCACHE_INCLUDE):error("ccache.pri already included")
 CCACHE_INCLUDE = 1
 
-unix: {
+contains(QMAKE_HOST.os, Linux):{
     BIN = $$system(which ccache)
 
     !isEmpty(BIN) {
@@ -20,3 +20,4 @@ unix: {
 
 
 
+