diff --git a/litex/soc/integration/soc_core.py b/litex/soc/integration/soc_core.py
index da9d7a129..fd7d265da 100644
--- a/litex/soc/integration/soc_core.py
+++ b/litex/soc/integration/soc_core.py
@@ -245,7 +245,7 @@ class SoCCore(Module):
 
         # Add CPU
         self.config["CPU_TYPE"] = str(cpu_type).upper()
-        self.config["CPU_VARIANT"] = str(cpu_variant).upper()
+        self.config["CPU_VARIANT"] = str(cpu_variant.split('+')[0]).upper()
         if cpu_type is not None:
             # CPU selection / instance
             if cpu_type == "lm32":