diff --git a/colord.spec b/colord.spec
index 519d2e3..95445af 100644
--- a/colord.spec
+++ b/colord.spec
@@ -109,6 +109,7 @@ This may be useful for CMYK soft-proofing or for extra device support.
 %setup -q
 
 %build
+export CFLAGS='-fno-strict-aliasing %optflags'
 # Set ~2 GiB limit so that colprof is forced to work in chunks when
 # generating the print profile rather than trying to allocate a 3.1 GiB
 # chunk of RAM to put the entire B-to-A tables in.