diff --git a/recipes-devtools/python/pya20_0.2.12.bb b/recipes-devtools/python/pya20_0.2.12.bb
index 16d304d..1866636 100644
--- a/recipes-devtools/python/pya20_0.2.12.bb
+++ b/recipes-devtools/python/pya20_0.2.12.bb
@@ -6,7 +6,7 @@ LIC_FILES_CHKSUM = "file://PKG-INFO;md5=4e584373bb0f46ef1e423cb7df37847d"
 DEPENDS = "python3"
 
 # No GPIO mappings for other machines yet
-COMPATIBLE_MACHINE = "(olinuxino-a13|olinuxino-a10|olinuxino-a20|olinuxino-a10lime|olinuxino-a20lime|olinuxino-a20lime2|olinuxino-a13som|olinuxino-a20som)"
+COMPATIBLE_MACHINE = "^(olinuxino-a13|olinuxino-a10|olinuxino-a20|olinuxino-a10lime|olinuxino-a20lime|olinuxino-a20lime2|olinuxino-a13som|olinuxino-a20som)$"
 
 SRC_URI = "https://pypi.python.org/packages/source/p/pyA20/pyA20-${PV}.tar.gz \
            file://mapping.h \