diff --git a/libnd4j/tests_cpu/layers_tests/MklDnnTests.cpp b/libnd4j/tests_cpu/layers_tests/MklDnnTests.cpp
index 03f37000e..c95fc11e3 100644
--- a/libnd4j/tests_cpu/layers_tests/MklDnnTests.cpp
+++ b/libnd4j/tests_cpu/layers_tests/MklDnnTests.cpp
@@ -21,6 +21,7 @@
 
 #include "testlayers.h"
 #include <initializer_list>
+#include <ops/declarable/PlatformHelper.h>
 
 #ifdef HAVE_MKLDNN