diff --git a/dev-python/numpy/numpy-1.13.3.ebuild b/dev-python/numpy/numpy-1.13.3.ebuild
index 7242f6777759d..38ab8f14ce324 100644
--- a/dev-python/numpy/numpy-1.13.3.ebuild
+++ b/dev-python/numpy/numpy-1.13.3.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2018 Gentoo Foundation
+# Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
@@ -127,7 +127,7 @@ python_prepare_all() {
 }
 
 python_compile() {
-	export MAKEOPTS=-j1 # bug #660754
+	use !lapack && export MAKEOPTS=-j1 #660754
 
 	local python_makeopts_jobs=""
 	python_is_python3 || python_makeopts_jobs="-j $(makeopts_jobs)"
diff --git a/dev-python/numpy/numpy-1.14.5.ebuild b/dev-python/numpy/numpy-1.14.5.ebuild
index 630b5d21ec695..e48e1dc70343e 100644
--- a/dev-python/numpy/numpy-1.14.5.ebuild
+++ b/dev-python/numpy/numpy-1.14.5.ebuild
@@ -114,6 +114,8 @@ python_prepare_all() {
 }
 
 python_compile() {
+	use !lapack && export MAKEOPTS=-j1 #660754
+
 	local python_makeopts_jobs=""
 	python_is_python3 || python_makeopts_jobs="-j $(makeopts_jobs)"
 	distutils-r1_python_compile \
diff --git a/dev-python/numpy/numpy-1.15.4.ebuild b/dev-python/numpy/numpy-1.15.4.ebuild
index 321b3a2e67227..5e43b353b7246 100644
--- a/dev-python/numpy/numpy-1.15.4.ebuild
+++ b/dev-python/numpy/numpy-1.15.4.ebuild
@@ -109,6 +109,8 @@ python_prepare_all() {
 }
 
 python_compile() {
+	use !lapack && export MAKEOPTS=-j1 #660754
+
 	local python_makeopts_jobs=""
 	python_is_python3 || python_makeopts_jobs="-j $(makeopts_jobs)"
 	distutils-r1_python_compile \
diff --git a/dev-python/numpy/numpy-1.16.1.ebuild b/dev-python/numpy/numpy-1.16.1.ebuild
index bf2f0cc9d3b7d..ecb913628ef64 100644
--- a/dev-python/numpy/numpy-1.16.1.ebuild
+++ b/dev-python/numpy/numpy-1.16.1.ebuild
@@ -112,6 +112,8 @@ python_prepare_all() {
 }
 
 python_compile() {
+	use !lapack && export MAKEOPTS=-j1 #660754
+
 	local python_makeopts_jobs=""
 	python_is_python3 || python_makeopts_jobs="-j $(makeopts_jobs)"
 	distutils-r1_python_compile \
diff --git a/dev-python/numpy/numpy-9999.ebuild b/dev-python/numpy/numpy-9999.ebuild
index baa28ab588931..7232ea8a951ed 100644
--- a/dev-python/numpy/numpy-9999.ebuild
+++ b/dev-python/numpy/numpy-9999.ebuild
@@ -104,6 +104,8 @@ python_prepare_all() {
 }
 
 python_compile() {
+	use !lapack && export MAKEOPTS=-j1 #660754
+
 	distutils-r1_python_compile -j $(makeopts_jobs) ${NUMPY_FCONFIG}
 }