diff --git a/CryptoPkg/Library/OpensslLib/OpensslLib.inf b/CryptoPkg/Library/OpensslLib/OpensslLib.inf
index c891eea4da..5bf4282c8d 100644
--- a/CryptoPkg/Library/OpensslLib/OpensslLib.inf
+++ b/CryptoPkg/Library/OpensslLib/OpensslLib.inf
@@ -656,6 +656,8 @@
    GCC:*_*_IA32_CC_FLAGS                  = -U_WIN32 -U_WIN64 $(OPENSSL_FLAGS) $(OPENSSL_EXFLAGS) -w -DTHIRTY_TWO_BIT
    GCC:*_*_X64_CC_FLAGS                   = -U_WIN32 -U_WIN64 $(OPENSSL_FLAGS) $(OPENSSL_EXFLAGS) -w -DSIXTY_FOUR_BIT
    GCC:*_*_IPF_CC_FLAGS                   = -U_WIN32 -U_WIN64 $(OPENSSL_FLAGS) $(OPENSSL_EXFLAGS) -w -DSIXTY_FOUR_BIT
+   GCC:*_*_ARM_CC_FLAGS                   = $(OPENSSL_FLAGS) $(OPENSSL_EXFLAGS) -w -DTHIRTY_TWO_BIT
+
    # suppress the following warnings in openssl so we don't break the build with warnings-as-errors:
    # 1295: Deprecated declaration <entity> - give arg types
    #  550: <entity> was set but never used