diff --git a/scripts/build.sh b/scripts/build.sh
index 488d39b..58d7675 100644
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -198,13 +198,17 @@ exec env \
 PKGCFG_EOF
 chmod +x "$PKGCFG_WRAPPER"
 
-# Ensure PKG_CONFIG_PATH is not set in our environment (avoid the OF Makefile bug)
+# Ensure PKG_CONFIG_PATH is not set in our environment (avoid the OF Makefile
+# "export $(PKG_CONFIG_PATH)" bug which treats its value as a variable name).
 unset PKG_CONFIG_PATH
 unset PKG_CONFIG_LIBDIR
 
+ARM64_PKG_CONFIG_PATH="/usr/lib/aarch64-linux-gnu/pkgconfig:/usr/share/pkgconfig"
+
 make clean 2>/dev/null || true
 make -j1 \
   PKG_CONFIG="$PKGCFG_WRAPPER" \
+  PKG_CONFIG_LIBDIR="$ARM64_PKG_CONFIG_PATH" \
   GST_VERSION=1.0 \
   PLATFORM_ARCH=aarch64 \
   CROSS_COMPILING=1 \