diff --git a/recipes-devtools/rust/rust-llvm.inc b/recipes-devtools/rust/rust-llvm.inc
index 776e270..370bb9d 100644
--- a/recipes-devtools/rust/rust-llvm.inc
+++ b/recipes-devtools/rust/rust-llvm.inc
@@ -8,8 +8,8 @@ LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=4c0bc17c954e99fd547528d938832bfa"
 inherit cmake pythonnative
 
 EXTRA_OECMAKE = " \
+    -DCMAKE_BUILD_TYPE=Release \
     -DLLVM_TARGETS_TO_BUILD='X86;ARM;AArch64;PowerPC;Mips' \
-    -DLLVM_ENABLE_ASSERTIONS=OFF \
     -DLLVM_BUILD_DOCS=OFF \
     -DLLVM_ENABLE_TERMINFO=OFF \
     -DLLVM_ENABLE_ZLIB=OFF \