diff --git a/installer/qpkg/shared/bin/filebot.sh b/installer/qpkg/shared/bin/filebot.sh
index 50235a40..129a9303 100755
--- a/installer/qpkg/shared/bin/filebot.sh
+++ b/installer/qpkg/shared/bin/filebot.sh
@@ -14,8 +14,7 @@ export LANG="en_US.UTF-8"
 export LC_ALL="en_US.UTF-8"
 
 # choose archive extractor / media characteristics parser
-if uname -m | grep "86"; then
-	# i686 or x86_64
+if uname -m | egrep "i386|i686|amd64|x86_64"; then
 	ARCHIVE_EXTRACTOR="SevenZipNativeBindings"  # use lib7-Zip-JBinding.so
 	MEDIA_PARSER="libmediainfo"                 # use libmediainfo
 else
diff --git a/installer/spk/package/filebot.sh b/installer/spk/package/filebot.sh
index 644da142..4a0d9eec 100755
--- a/installer/spk/package/filebot.sh
+++ b/installer/spk/package/filebot.sh
@@ -46,7 +46,7 @@ export LANG="en_US.UTF-8"
 export LC_ALL="en_US.UTF-8"
 
 # choose archive extractor / media characteristics parser
-if uname -m | grep "86"; then
+if uname -m | egrep "i386|i686|amd64|x86_64"; then
 	# i686 or x86_64
 	ARCHIVE_EXTRACTOR="SevenZipNativeBindings"  # use lib7-Zip-JBinding.so
 	MEDIA_PARSER="libmediainfo"                 # use libmediainfo
diff --git a/installer/tar/filebot.sh b/installer/tar/filebot.sh
index de7d0309..09197989 100755
--- a/installer/tar/filebot.sh
+++ b/installer/tar/filebot.sh
@@ -29,7 +29,7 @@ export LANG="en_US.UTF-8"
 export LC_ALL="en_US.UTF-8"
 
 # choose archive extractor / media characteristics parser
-if uname -m | grep "86"; then
+if uname -m | egrep "i386|i686|amd64|x86_64"; then
 	# i686 or x86_64
 	ARCHIVE_EXTRACTOR="SevenZipNativeBindings"  # use lib7-Zip-JBinding.so
 	MEDIA_PARSER="libmediainfo"                 # use libmediainfo