diff --git a/vim/syntax/solstice.vim b/vim/syntax/solstice.vim
index aa429c4..b642d5c 100644
--- a/vim/syntax/solstice.vim
+++ b/vim/syntax/solstice.vim
@@ -7,10 +7,12 @@ endif
 " Keywords
 syn keyword solsticeConditional       if
 syn keyword solsticeRepeat            while
+syn keyword solsticeKeyword           def struct return
+syn keyword solsticeType              int string bool double char
 syn keyword solsticeBoolean           true false
 
 " Built-in functions
-syn keyword solsticeBuiltin           puts println input
+syn keyword solsticeBuiltin           puts print println input
 
 " Data Types
 syn match   solsticeNumber            "\d\+\(\.\d\+\)\="
@@ -26,6 +28,8 @@ syn match  solsticeDelimiter         "[{()}]"
 
 hi def link solsticeConditional       Conditional
 hi def link solsticeRepeat            Repeat
+hi def link solsticeKeyword           Keyword
+hi def link solsticeType              Type
 hi def link solsticeBoolean           Boolean
 hi def link solsticeBuiltin           Function
 hi def link solsticeNumber            Number