diff --git a/doc/doxygen/riot.doxyfile b/doc/doxygen/riot.doxyfile
index b17b45c2d6..64d4561e96 100644
--- a/doc/doxygen/riot.doxyfile
+++ b/doc/doxygen/riot.doxyfile
@@ -1997,7 +1997,7 @@ INCLUDE_FILE_PATTERNS  =
 PREDEFINED             = DOXYGEN \
                          __attribute__(x)= \
                          ADC_NUMOF \
-                         CPUID_ID_LEN \
+                         CPUID_LEN \
                          DAC_NUMOF \
                          GPIO_NUMOF \
                          I2C_NUMOF \