diff --git a/StdLib/LibC/LibC.inf b/StdLib/LibC/LibC.inf
index f136306485..6039bb81c7 100644
--- a/StdLib/LibC/LibC.inf
+++ b/StdLib/LibC/LibC.inf
@@ -120,3 +120,4 @@
 #
 [BuildOptions]
   MSFT:*_*_IA32_CC_FLAGS = /GL-
+  GCC:*_*_ARM_CC_FLAGS = -fno-lto
diff --git a/StdLib/LibC/Softfloat/Softfloat.inf b/StdLib/LibC/Softfloat/Softfloat.inf
index 99763bcb57..460406c38f 100644
--- a/StdLib/LibC/Softfloat/Softfloat.inf
+++ b/StdLib/LibC/Softfloat/Softfloat.inf
@@ -71,4 +71,4 @@
 # Nasty things could happen if you do.
 
 [BuildOptions]
-  GCC:*_*_*_CC_FLAGS  = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-tree-vrp
+  GCC:*_*_*_CC_FLAGS  = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-tree-vrp -fno-lto