diff --git a/sci-libs/libsigrokdecode/libsigrokdecode-0.5.3-r2.ebuild b/sci-libs/libsigrokdecode/libsigrokdecode-0.5.3-r2.ebuild
index 5ede936226ef0..617e1edb0d219 100644
--- a/sci-libs/libsigrokdecode/libsigrokdecode-0.5.3-r2.ebuild
+++ b/sci-libs/libsigrokdecode/libsigrokdecode-0.5.3-r2.ebuild
@@ -49,5 +49,6 @@ src_test() {
 
 src_install() {
 	default
+	python_optimize "${D}"/usr/share/libsigrokdecode/decoders
 	find "${D}" -name '*.la' -type f -delete || die
 }
diff --git a/sci-libs/libsigrokdecode/libsigrokdecode-9999.ebuild b/sci-libs/libsigrokdecode/libsigrokdecode-9999.ebuild
index 091ef37e284a0..8f04c30aebba5 100644
--- a/sci-libs/libsigrokdecode/libsigrokdecode-9999.ebuild
+++ b/sci-libs/libsigrokdecode/libsigrokdecode-9999.ebuild
@@ -49,5 +49,6 @@ src_test() {
 
 src_install() {
 	default
+	python_optimize "${D}"/usr/share/libsigrokdecode/decoders
 	find "${D}" -name '*.la' -type f -delete || die
 }