diff --git a/sip.spec b/sip.spec
index 3bbd051..4872ce0 100644
--- a/sip.spec
+++ b/sip.spec
@@ -7,6 +7,13 @@
 %{!?python2_sitearch:%global python2_sitearch %(%{__python2} -c "from distutils.sysconfig import get_python_lib; print(get_python_lib(1))")}
 %{!?python2_inc:%global python2_inc %(%{__python2} -c "from distutils.sysconfig import get_python_inc; print get_python_inc(1)")}
 
+%if %{fedora} > 30
+  %global PYINCLUDE %{_includedir}/python%{python3_version}
+%endif
+%if %{fedora} <= 30
+  %global PYINCLUDE %{_includedir}/python%{python3_version}m
+%endif
+
 %global rpm_macros_dir %(d=%{_rpmconfigdir}/macros.d; [ -d $d ] || d=%{_sysconfdir}/rpm; echo $d)
 
 # trim changelog included in binary rpms
@@ -24,7 +31,7 @@
 Summary: SIP - Python/C++ Bindings Generator
 Name: sip
 Version: 4.19.18
-Release: 4%{?dist}
+Release: 5%{?dist}
 
 # sipgen/parser.{c.h} is GPLv3+ with exceptions (bison)
 License: GPLv2 or GPLv3 and (GPLv3+ with exceptions)
@@ -224,7 +231,7 @@ sed -i -e 's|target = siplib|target = sip|g' siplib/siplib.sbf
 mkdir %{_target_platform}-python3
 pushd %{_target_platform}-python3
 %{__python3} ../configure.py \
-  -b %{_bindir} -d %{python3_sitearch} -e %{_includedir}/python%{python3_version} \
+  -b %{_bindir} -d %{python3_sitearch} -e %{PYINCLUDE} \
   CXXFLAGS+="%{optflags}" CFLAGS+="%{optflags}" LFLAGS+="%{?__global_ldflags}"
 
 %make_build
@@ -235,7 +242,7 @@ mkdir %{_target_platform}-python3-pyqt4
 pushd %{_target_platform}-python3-pyqt4
 %{__python3} ../configure.py \
   --sip-module=PyQt4.sip \
-  -b %{_bindir} -d %{python3_sitearch} -e %{_includedir}/python%{python3_version} \
+  -b %{_bindir} -d %{python3_sitearch} -e %{PYINCLUDE} \
   CXXFLAGS+="%{optflags}" CFLAGS+="%{optflags}" LFLAGS+="%{?__global_ldflags}"
 
 %make_build
@@ -245,7 +252,7 @@ mkdir %{_target_platform}-python3-pyqt5
 pushd %{_target_platform}-python3-pyqt5
 %{__python3} ../configure.py \
   --sip-module=PyQt5.sip \
-  -b %{_bindir} -d %{python3_sitearch} -e %{_includedir}/python%{python3_version} \
+  -b %{_bindir} -d %{python3_sitearch} -e %{PYINCLUDE} \
   CXXFLAGS+="%{optflags}" CFLAGS+="%{optflags}" LFLAGS+="%{?__global_ldflags}"
 
 %make_build
@@ -256,7 +263,7 @@ mkdir %{_target_platform}-python3-wx
 pushd %{_target_platform}-python3-wx
 %{__python3} ../configure.py \
   --sip-module=wx.siplib \
-  -b %{_bindir} -d %{python3_sitearch} -e %{_includedir}/python%{python3_version} \
+  -b %{_bindir} -d %{python3_sitearch} -e %{PYINCLUDE} \
   CXXFLAGS+="%{optflags}" CFLAGS+="%{optflags}" LFLAGS+="%{?__global_ldflags}"
 
 %make_build
@@ -355,7 +362,7 @@ install -D -p -m644 %{SOURCE1} %{buildroot}%{rpm_macros_dir}/macros.sip
 
 %if %{with python3}
 %files -n python%{python3_pkgversion}-sip-devel
-%{_prefix}/include/python%{python3_version}/sip.h
+%{PYINCLUDE}/sip.h
 %{python3_sitearch}/sipconfig.py*
 %{python3_sitearch}/sipdistutils.py*
 %{python3_sitearch}/__pycache__/*
@@ -393,6 +400,9 @@ install -D -p -m644 %{SOURCE1} %{buildroot}%{rpm_macros_dir}/macros.sip
 
 
 %changelog
+* Wed Aug 28 2019 Gwyn Ciesla <gwync@protonmail.com> 4.19.18-5
+- Conditionalize Python 3 include dir.
+
 * Mon Aug 19 2019 Scott Talbert <swt@techie.net> - 4.19.18-4
 - Build a namespaced sip module, wx.siplib, for wxpython (#1739469)