diff --git a/openttd.spec b/openttd.spec
index c62a4a7..116785c 100644
--- a/openttd.spec
+++ b/openttd.spec
@@ -7,7 +7,7 @@
 
 Name:           openttd
 Version:        1.11.2
-Release:        2%{?prever:.%{prever}}%{?dist}
+Release:        3%{?prever:.%{prever}}%{?dist}
 Summary:        Transport system simulation game
 
 License:        GPLv2+
@@ -54,7 +54,12 @@ the AI.
 sed -i "s|/usr/share|%{_datadir}|g" src/music/fluidsynth.cpp
 
 %build
-%cmake -DGLOBAL_DIR:PATH=%{_datadir}/%{name} -DCMAKE_INSTALL_BINDIR=bin -DCMAKE_INSTALL_DATADIR=%{_datadir}
+%cmake \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_BINDIR=bin \
+    -DCMAKE_INSTALL_DATADIR=%{_datadir} \
+    -DGLOBAL_DIR:PATH=%{_datadir}/%{name}
+
 %cmake_build
 
 %install
@@ -134,6 +139,9 @@ EOF
 
 
 %changelog
+* Sat May 22 2021 Felix Kaechele <felix@kaechele.ca> - 1.11.2-3
+- set CMAKE_BUILD_TYPE to Release (rhbz#1963215)
+
 * Thu May 20 2021 Pete Walter <pwalter@fedoraproject.org> - 1.11.2-2
 - Rebuild for ICU 69