diff --git a/mingw-harfbuzz.spec b/mingw-harfbuzz.spec
index 9d1723d..5ed0c66 100644
--- a/mingw-harfbuzz.spec
+++ b/mingw-harfbuzz.spec
@@ -29,6 +29,8 @@ BuildRequires:  mingw64-freetype
 BuildRequires:  mingw64-cairo
 BuildRequires:  mingw64-icu
 
+# Needed for the delay-load patch
+BuildRequires:  mingw-w64-tools
 BuildRequires:  autoconf automake libtool