diff --git a/libsodium.spec b/libsodium.spec
index dd26f28..0516706 100644
--- a/libsodium.spec
+++ b/libsodium.spec
@@ -61,7 +61,7 @@ to compile and develop applications that use libsodium.
 %setup -q
 
 %build
-%if %arm
+%ifarch %arm
 export CFLAGS="%{optflags} -fno-tree-vrp"
 %configure --disable-static
 %endif