diff --git a/Makefile b/Makefile
index 410ecac1..1824a756 100644
--- a/Makefile
+++ b/Makefile
@@ -241,12 +241,12 @@ coverage:
 
 # Target used in development to format source code with clang-format.
 format:
-	$Qclang-format -i $$(git ls-files 'include/**/*.hpp' 'src/**/*.cpp')
+	$Qclang-format -i $$(git ls-files '*.hpp' '*.cpp')
 
 # Target used in development to check code with clang-tidy.
 # Requires Bison-generated header files to exist.
 tidy: src/asm/parser.hpp src/link/script.hpp
-	$Qclang-tidy -p . $$(git ls-files 'include/**/*.hpp' 'src/**/*.cpp')
+	$Qclang-tidy -p . $$(git ls-files '*.hpp' '*.cpp')
 
 # Target used in development to remove unused `#include` headers.
 iwyu: