diff --git a/runtime/syntax/yaml.micro b/runtime/syntax/yaml.micro
index 20deb633..7b00c44e 100644
--- a/runtime/syntax/yaml.micro
+++ b/runtime/syntax/yaml.micro
@@ -6,7 +6,7 @@ color constant  "\b(YES|yes|Y|y|ON|on|NO|no|N|n|OFF|off)\b"
 color constant "\b(true|false)\b"
 color statement "\[" "\]" ":[[:space:]]+[|>]" "^[[:space:]]*- "
 color identifier "[[:space:]][\*&][A-Za-z0-9]+"
-color type "([-\w\.\/]+[[:space:]]*:\s*)|([-\w\.\/]+[[:space:]]*:$)"
+color type "([-\w\.\/]+[[:space:]]*:\s+)|([-\w\.\/]+[[:space:]]*:$)"
 color constant.string ""(\\.|[^"])*"|'(\\.|[^'])*'"
 color comment "(^|[[:space:]])#([^{].*)?$"
 color special  "^---" "^\.\.\." "^%YAML" "^%TAG"