diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt
index 8ef143c69bb..2362c26b52b 100644
--- a/intern/cycles/kernel/CMakeLists.txt
+++ b/intern/cycles/kernel/CMakeLists.txt
@@ -491,7 +491,7 @@ if(WITH_CYCLES_CUDA_BINARIES)
       set(cuda_flags ${cuda_flags} --ptxas-options="-v")
     endif()
 
-    if(${cuda_version} GREATER_EQUAL 110)
+    if(${CUDA_VERSION} GREATER_EQUAL 110)
       # Helps with compatibility when using recent clang host compiler.
       set(cuda_flags ${cuda_flags} -std=c++17)
     endif()