diff --git a/doxygen/mbedtls.doxyfile b/doxygen/mbedtls.doxyfile
index 1a421ef..cd3937f 100644
--- a/doxygen/mbedtls.doxyfile
+++ b/doxygen/mbedtls.doxyfile
@@ -44,3 +44,12 @@
 ALIASES += emptydescription=""
 
 GENERATE_XML           = YES
+
+# Define away Mbed TLS macros that make parsing definitions difficult.
+# MBEDTLS_DEPRECATED is not included in this list as it's important to
+# display deprecated status in the documentation.
+PREDEFINED             = "MBEDTLS_CHECK_RETURN_CRITICAL="   \
+                         "MBEDTLS_CHECK_RETURN_TYPICAL="    \
+                         "MBEDTLS_CHECK_RETURN_OPTIONAL="   \
+                         "MBEDTLS_PRINTF_ATTRIBUTE(a,b)="   \
+