diff --git a/docs/src/03_system_scope_and_context.adoc b/docs/src/03_system_scope_and_context.adoc
index 9c79942..818439d 100644
--- a/docs/src/03_system_scope_and_context.adoc
+++ b/docs/src/03_system_scope_and_context.adoc
@@ -48,7 +48,7 @@ The title of the table is the name of your system, the three columns contain the
 
 ****
 
-[plantuml,"Context diagram",png]
+[plantuml,"Context Diagram",png]
 ----
 actor Player
 actor Client
diff --git a/docs/src/05_building_block_view.adoc b/docs/src/05_building_block_view.adoc
index 036ba49..048b720 100644
--- a/docs/src/05_building_block_view.adoc
+++ b/docs/src/05_building_block_view.adoc
@@ -63,7 +63,7 @@ In the best case you will get away with examples or simple signatures.
 
 ****
 
-[plantuml,"White box overall system",png]
+[plantuml,"Whitebox overall system",png]
 ----
 actor Player
 actor Client
@@ -165,7 +165,7 @@ Leave out normal, simple, boring or standardized parts of your system
 ...describes the internal structure of _building block 1_.
 ****
 
-[plantuml,"Generated Questions API (White Box)",png]
+[plantuml,"Generated Questions API (WhiteBox)",png]
 ----
 [Wikidata]
 [wikidatanpm] <<library>>