diff --git a/source/dub/package_.d b/source/dub/package_.d
index f95f735..0b5a75a 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -788,6 +788,9 @@
 		dst.removeImportFiles(dst.sourceFiles);
 		collectFiles!"addStringImportFiles"(stringImportPaths, "*");
 
+		// ensure a deterministic order of files as passed to the compiler
+		dst.sourceFiles.sort();
+
 		getPlatformSetting!("dflags", "addDFlags")(dst, platform);
 		getPlatformSetting!("lflags", "addLFlags")(dst, platform);
 		getPlatformSetting!("libs", "addLibs")(dst, platform);