diff --git a/litex/build/altera/quartus.py b/litex/build/altera/quartus.py
index 8225bf3a7b..16e6fa9810 100644
--- a/litex/build/altera/quartus.py
+++ b/litex/build/altera/quartus.py
@@ -40,8 +40,9 @@ def build(self, platform, fragment,
 
         self._synth_tool = synth_tool
 
-        # Apply FullMemoryWE on Design (Quartus does not infer memories correctly otherwise).
-        FullMemoryWE()(fragment)
+        if not platform.device.startswith("10M"):
+            # Apply FullMemoryWE on Design (Quartus does not infer memories correctly otherwise).
+            FullMemoryWE()(fragment)
 
         return GenericToolchain.build(self, platform, fragment, **kwargs)