diff --git a/servo/Makefile.in b/servo/Makefile.in
index 2d20c41e2cdb..4e72abf5dd3d 100644
--- a/servo/Makefile.in
+++ b/servo/Makefile.in
@@ -270,6 +270,13 @@ DEPS_script_traits = $(CRATE_script_traits) $(SRC_script_traits) $(DONE_msg) $(D
 
 RFLAGS_script = $(addprefix -L $(B)src/,$(DEPS_SUBMODULES)) -L $(B)src/components/util -L $(B)src/components/style -L $(B)src/components/net -L $(B)src/components/msg -L$(B)src/components/macros -L$(B)src/components/gfx -L$(B)src/components/script_traits
 
+ifdef TRAVIS
+# libscript has a habit of taking over 10 minutes while running on Travis,
+# and Travis kills the build if we don't output anything for 10 minutes.
+# Note: mk/doc.mk filters this out when calling rustdoc.
+RFLAGS_script += -Z time-passes
+endif
+
 BINDINGS_SRC = $(S)src/components/script/dom/bindings/codegen
 WEBIDLS_SRC = $(S)src/components/script/dom/webidls
 
diff --git a/servo/mk/doc.mk b/servo/mk/doc.mk
index d9e3dca834c3..f0325b306eb7 100644
--- a/servo/mk/doc.mk
+++ b/servo/mk/doc.mk
@@ -19,7 +19,7 @@ ifeq (,$(filter $(1),$(DOC_BLACKLISTED)))
 
 doc/$(1)/index.html: $$(DEPS_$(1)) $$(RUSTDOC_DEPS)
 	@$$(call E, rustdoc: $$@)
-	$$(Q)$$(RUSTDOC) $$(RUSTDOC_FLAGS) $$(RFLAGS_$(1)) $$<
+	$$(Q)$$(RUSTDOC) $$(RUSTDOC_FLAGS) $$(filter-out -Z time-passes, $$(RFLAGS_$(1))) $$<
 
 else