diff --git a/src/libs/vdxf/libdxfrw/drw_base.h b/src/libs/vdxf/libdxfrw/drw_base.h
index 4832ac784..58102ee22 100644
--- a/src/libs/vdxf/libdxfrw/drw_base.h
+++ b/src/libs/vdxf/libdxfrw/drw_base.h
@@ -20,6 +20,10 @@
 #include <cmath>
 #include <QtGlobal>
 
+#ifdef Q_CC_MSVC
+    #include <ciso646>
+#endif /* Q_CC_MSVC */
+
 #ifdef DRW_ASSERTS
 # define drw_assert(a) assert(a)
 #else