diff --git a/Internal.h b/Internal.h
index 8ed421b..c7ce7e9 100644
--- a/Internal.h
+++ b/Internal.h
@@ -18,7 +18,7 @@
 #include <utility>
 #include <vector>
 
-#include <valgrind/callgrind.h>
+#include <callgrind.h>
 
 #define DEBUG_VERBOSE 0