diff --git a/lib2geom.spec b/lib2geom.spec
index cd676cf..ce057a8 100644
--- a/lib2geom.spec
+++ b/lib2geom.spec
@@ -3,7 +3,7 @@ Version:        1.3
 %forgemeta
 
 Name:           lib2geom
-Release:        %autorelease -e rvre0
+Release:        %autorelease -e 0.riscv64
 Summary:        Easy to use 2D geometry library in C++
 
 License:        LGPL-2.1-only AND MPL-1.1
@@ -42,6 +42,11 @@ developing applications that use %{name}.
 %forgeautosetup -p1
 
 %build
+%ifarch riscv64
+export CLAGS="%{optflags} -ffp-contract=off"
+export CXXLAGS="%{optflags} -ffp-contract=off"
+%endif
+
 %cmake -GNinja \
     -DCMAKE_BUILD_TYPE=Release \
     -D2GEOM_BUILD_SHARED=ON \