diff --git a/source/dub/generators/build.d b/source/dub/generators/build.d
index 47fcfee..971ce8f 100644
--- a/source/dub/generators/build.d
+++ b/source/dub/generators/build.d
@@ -353,6 +353,7 @@
 		addHash(buildsettings.lflags);
 		addHash((cast(uint)buildsettings.options).to!string);
 		addHash(buildsettings.stringImportPaths);
+		addHash(buildsettings.importPaths);
 		addHash(settings.platform.architecture);
 		addHash(settings.platform.compilerBinary);
 		addHash(settings.platform.compiler);