diff --git a/cpu/esp8266/include/cpu_conf.h b/cpu/esp8266/include/cpu_conf.h
index 6d67556270..e250af8aa2 100644
--- a/cpu/esp8266/include/cpu_conf.h
+++ b/cpu/esp8266/include/cpu_conf.h
@@ -65,16 +65,27 @@ extern "C" {
 #ifndef THREAD_EXTRA_STACKSIZE_PRINTF
 #define THREAD_EXTRA_STACKSIZE_PRINTF (0)
 #endif
+
 #ifndef THREAD_STACKSIZE_DEFAULT
 #define THREAD_STACKSIZE_DEFAULT      (1024)
 #endif
+
 #ifndef THREAD_STACKSIZE_IDLE
 #define THREAD_STACKSIZE_IDLE         (1024)
 #endif
+
 #ifndef THREAD_STACKSIZE_MAIN
 #define THREAD_STACKSIZE_MAIN         (3072)
 #endif
 
+#ifndef THREAD_STACKSIZE_SMALL
+#define THREAD_STACKSIZE_SMALL        (THREAD_STACKSIZE_MEDIUM * 3 / 2)
+#endif
+
+#ifndef THREAD_STACKSIZE_TINY
+#define THREAD_STACKSIZE_TINY         (THREAD_STACKSIZE_MEDIUM / 2)
+#endif
+
 #ifndef GNRC_IPV6_STACK_SIZE
 #define GNRC_IPV6_STACK_SIZE          (1536)
 #endif
diff --git a/dist/tools/doccheck/exclude_patterns b/dist/tools/doccheck/exclude_patterns
index d38c72658b..feddd42c1a 100644
--- a/dist/tools/doccheck/exclude_patterns
+++ b/dist/tools/doccheck/exclude_patterns
@@ -5955,9 +5955,7 @@ cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member GNRC_IPV6_STACK_SIZE \(m
 cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member GNRC_PKTDUMP_STACKSIZE \(macro definition\) of group cpu_esp8266_conf is not documented\.
 cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member TCPIP_THREAD_STACKSIZE \(macro definition\) of group cpu_esp8266_conf is not documented\.
 cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member THREAD_EXTRA_STACKSIZE_PRINTF \(macro definition\) of group cpu_esp8266_conf is not documented\.
-cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member THREAD_STACKSIZE_DEFAULT \(macro definition\) of group cpu_esp8266_conf is not documented\.
-cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member THREAD_STACKSIZE_IDLE \(macro definition\) of group cpu_esp8266_conf is not documented\.
-cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member THREAD_STACKSIZE_MAIN \(macro definition\) of group cpu_esp8266_conf is not documented\.
+cpu/esp8266/include/cpu_conf\.h:[0-9]+: warning: Member THREAD_STACKSIZE_[A-Z]+ \(macro definition\) of group cpu_esp8266_conf is not documented\.
 cpu/esp8266/include/irq_arch\.h:[0-9]+: warning: Member ETS_SOFT_INT_HDL_MAC \(macro definition\) of file irq_arch\.h is not documented\.
 cpu/esp8266/include/irq_arch\.h:[0-9]+: warning: Member ETS_SOFT_INT_NONE \(macro definition\) of file irq_arch\.h is not documented\.
 cpu/esp8266/include/irq_arch\.h:[0-9]+: warning: Member ETS_SOFT_INT_YIELD \(macro definition\) of file irq_arch\.h is not documented\.