diff --git a/projects/libheif/build.sh b/projects/libheif/build.sh
index 70618a2d2..7c303ea72 100755
--- a/projects/libheif/build.sh
+++ b/projects/libheif/build.sh
@@ -74,7 +74,8 @@ PKG_CONFIG="pkg-config --static" PKG_CONFIG_PATH="$DEPS_PATH/lib/pkgconfig" ./co
     --enable-static \
     --disable-examples \
     --disable-go \
-    --enable-libfuzzer="$LIB_FUZZING_ENGINE"
+    --enable-libfuzzer="$LIB_FUZZING_ENGINE" \
+    CPPFLAGS="-I$DEPS_PATH/include"
 make clean
 make -j$(nproc)