diff --git a/local/recipes/kde/kf6-syntaxhighlighting/recipe.toml b/local/recipes/kde/kf6-syntaxhighlighting/recipe.toml
index be6598edf8..3c011ee445 100644
--- a/local/recipes/kde/kf6-syntaxhighlighting/recipe.toml
+++ b/local/recipes/kde/kf6-syntaxhighlighting/recipe.toml
@@ -67,13 +67,20 @@ rm -rf "${HOST_INDEXER_DIR}"
 mkdir -p "${HOST_INDEXER_DIR}"
 cd "${HOST_INDEXER_DIR}"
 
+# cookbook_redbear_redoxer wraps the script with the cross toolchain.
+# Clear LDFLAGS/RUSTFLAGS and point cmake at the host gcc/g++ so the
+# indexer build doesn't pick up redox sysroot paths or compiler defines.
+unset LDFLAGS LDFLAGS_x86_64_unknown_redox CFLAGS CXXFLAGS CFLAGS_x86_64_unknown_redox CXXFLAGS_x86_64_unknown_redox RUSTFLAGS
 cmake "${COOKBOOK_SOURCE}" \
+    -DCMAKE_C_COMPILER=/usr/bin/gcc \
+    -DCMAKE_CXX_COMPILER=/usr/bin/g++ \
     -DCMAKE_INSTALL_PREFIX="${HOST_INDEXER_DIR}/install" \
     -DCMAKE_BUILD_TYPE=Release \
     -DBUILD_TESTING=OFF \
     -DBUILD_QCH=OFF \
     -DKSYNTAXHIGHLIGHTING_USE_GUI=OFF \
     -DECM_DIR="${ECM_DIR}" \
+    -DCMAKE_PREFIX_PATH=/usr \
     -Wno-dev
 
 make -j"${COOKBOOK_MAKE_JOBS}" katehighlightingindexer || make -C src/indexer -j"${COOKBOOK_MAKE_JOBS}"
@@ -96,7 +103,7 @@ cmake "${COOKBOOK_SOURCE}" \
     -DBUILD_TESTING=OFF \
     -DBUILD_QCH=OFF \
     -DKSYNTAXHIGHLIGHTING_USE_GUI=OFF \
-    -DKATEHIGHLIGHTINGINDEXER_EXECUTABLE="${HOST_INDEXER_DIR}/src/indexer/katehighlightingindexer" \
+    -DKATEHIGHLIGHTINGINDEXER_EXECUTABLE="${HOST_INDEXER_DIR}/bin/katehighlightingindexer" \
     -Wno-dev
 
 cmake --build . -j${COOKBOOK_MAKE_JOBS}