diff --git a/sci-libs/scipy/scipy-0.19.1.ebuild b/sci-libs/scipy/scipy-0.19.1.ebuild
index 5e43cbe818cab..c12cc341cc76c 100644
--- a/sci-libs/scipy/scipy-0.19.1.ebuild
+++ b/sci-libs/scipy/scipy-0.19.1.ebuild
@@ -102,9 +102,10 @@ python_prepare_all() {
 }
 
 python_compile() {
+	# FIXME: parallel python building fails, bug #614464
+	# $(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 	${EPYTHON} tools/cythonize.py || die
 	distutils-r1_python_compile \
-		$(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 		${SCIPY_FCONFIG}
 }
 
diff --git a/sci-libs/scipy/scipy-1.0.0.ebuild b/sci-libs/scipy/scipy-1.0.0.ebuild
index 3ed2ec72b0e8b..0db065d7043a5 100644
--- a/sci-libs/scipy/scipy-1.0.0.ebuild
+++ b/sci-libs/scipy/scipy-1.0.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
@@ -105,9 +105,10 @@ python_prepare_all() {
 }
 
 python_compile() {
+	# FIXME: parallel python building fails, bug #614464
+	# $(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 	${EPYTHON} tools/cythonize.py || die
 	distutils-r1_python_compile \
-		$(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 		${SCIPY_FCONFIG}
 }
 
diff --git a/sci-libs/scipy/scipy-1.1.0.ebuild b/sci-libs/scipy/scipy-1.1.0.ebuild
index 789041b2c35b0..0db065d7043a5 100644
--- a/sci-libs/scipy/scipy-1.1.0.ebuild
+++ b/sci-libs/scipy/scipy-1.1.0.ebuild
@@ -105,9 +105,10 @@ python_prepare_all() {
 }
 
 python_compile() {
+	# FIXME: parallel python building fails, bug #614464
+	# $(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 	${EPYTHON} tools/cythonize.py || die
 	distutils-r1_python_compile \
-		$(usex python_targets_python3_5 "" "-j $(makeopts_jobs)") \
 		${SCIPY_FCONFIG}
 }