diff --git a/core/firefox/spkgbuild b/core/firefox/spkgbuild
index 024863621..f35596af1 100644
--- a/core/firefox/spkgbuild
+++ b/core/firefox/spkgbuild
@@ -44,7 +44,6 @@ EOF
 	export CC=clang CXX=clang++ AR=llvm-ar NM=llvm-nm RANLIB=llvm-ranlib
 	export MOZBUILD_STATE_PATH=${PWD}/mozbuild
 	export CARGO_HOME=$INITDIR
-	export MOZBUILD_STATE_PATH="$PKGMK_SOURCE_DIR/.mozbuild"
 	export MOZ_NOSPAM=1
 	export MACH_USE_SYSTEM_PYTHON=1