diff --git a/common/build-style/python-module.sh b/common/build-style/python-module.sh
index 57ec8c7383..89500c3e60 100644
--- a/common/build-style/python-module.sh
+++ b/common/build-style/python-module.sh
@@ -19,9 +19,9 @@ do_build() {
 			env CC="$CC" LDSHARED="$LDSHARED" \
 				PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 				LDFLAGS="$LDFLAGS" python${pyver} setup.py \
-					build --build-base=build-${pyver} ${make_build_args}
+					build --build-base=build${pyver//./_} ${make_build_args}
 		else
-			python${pyver} setup.py build --build-base=build-${pyver} ${make_build_args}
+			python${pyver} setup.py build --build-base=build${pyver//./_} ${make_build_args}
 		fi
 	done
 }
@@ -43,10 +43,10 @@ do_install() {
 			env CC="$CC" LDSHARED="$LDSHARED" \
 				PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 				LDFLAGS="$LDFLAGS" python${pyver} setup.py \
-					build --build-base=build-${pyver} \
+					build --build-base=build${pyver//./_} \
 					install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 		else
-			python${pyver} setup.py build --build-base=build-${pyver} \
+			python${pyver} setup.py build --build-base=build${pyver//./_} \
 				install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 		fi
 
diff --git a/common/build-style/python2-module.sh b/common/build-style/python2-module.sh
index 62c5fdd592..da6b04b6c1 100644
--- a/common/build-style/python2-module.sh
+++ b/common/build-style/python2-module.sh
@@ -12,9 +12,9 @@ do_build() {
 		env CC="$CC" LDSHARED="$LDSHARED" \
 			PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 			LDFLAGS="$LDFLAGS" python2 setup.py \
-				build --build-base=build-${py2_ver} ${make_build_args}
+				build --build-base=build${py2_ver//./_} ${make_build_args}
 	else
-		python2 setup.py build --build-base=build-${py2_ver} ${make_build_args}
+		python2 setup.py build --build-base=build${py2_ver}//./_ ${make_build_args}
 	fi
 }
 
@@ -28,10 +28,10 @@ do_install() {
 		env CC="$CC" LDSHARED="$LDSHARED" \
 			PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 			LDFLAGS="$LDFLAGS" python2 setup.py \
-				build --build-base=build-${py2_ver} \
+				build --build-base=build${py2_ver//./_} \
 				install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 	else
-		python2 setup.py build --build-base=build-${py2_ver} \
+		python2 setup.py build --build-base=build${py2_ver//./_} \
 			install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 	fi
 }
diff --git a/common/build-style/python3-module.sh b/common/build-style/python3-module.sh
index df2bd90156..92b2ae6991 100644
--- a/common/build-style/python3-module.sh
+++ b/common/build-style/python3-module.sh
@@ -12,9 +12,9 @@ do_build() {
 		env CC="$CC" LDSHARED="$LDSHARED" \
 			PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 			LDFLAGS="$LDFLAGS" python3 setup.py \
-				build --build-base=build-${py3_ver} ${make_build_args}
+				build --build-base=build${py3_ver//./_} ${make_build_args}
 	else
-		python3 setup.py build --build-base=build-${py3_ver} ${make_build_args}
+		python3 setup.py build --build-base=build${py3_ver//./_} ${make_build_args}
 	fi
 }
 
@@ -28,10 +28,10 @@ do_install() {
 		env CC="$CC" LDSHARED="$LDSHARED" \
 			PYPREFIX="$PYPREFIX" CFLAGS="$CFLAGS" \
 			LDFLAGS="$LDFLAGS" python3 setup.py \
-				build --build-base=build-${py3_ver} \
+				build --build-base=build${py3_ver//./_} \
 				install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 	else
-		python3 setup.py build --build-base=build-${py3_ver} \
+		python3 setup.py build --build-base=build${py3_ver//./_} \
 			install --prefix=/usr --root=${DESTDIR} ${make_install_args}
 	fi
 }