diff --git a/make-includes/build_section_rules.make b/make-includes/build_section_rules.make
index fc8c92c..584adf8 100755
--- a/make-includes/build_section_rules.make
+++ b/make-includes/build_section_rules.make
@@ -133,13 +133,13 @@
 # the tutorials variables will be empty when we're in the labs directory,
 # and vice versa, everything just works!
 #
-QUESTION_SRC_DIRS:=$(foreach p,$(QUESTIONS_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p))))
+QUESTION_SRC_DIRS:=$(foreach p,$(QUESTIONS_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p) | sort)))
 
-ANSWER_SRC_DIRS:=$(foreach p,$(ANSWERS_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p))))
+ANSWER_SRC_DIRS:=$(foreach p,$(ANSWERS_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p) | sort)))
 
-QUESTION_INSTALL_DIRS:=$(foreach p,$(QUESTION_INSTALL_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p))))
+QUESTION_INSTALL_DIRS:=$(foreach p,$(QUESTION_INSTALL_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p) | sort)))
 
-ANSWER_INSTALL_DIRS:=$(foreach p,$(ANSWER_INSTALL_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p))))
+ANSWER_INSTALL_DIRS:=$(foreach p,$(ANSWER_INSTALL_PATTERNS),$(notdir $(shell find . -regex '.*/'$(p) | sort)))
 
 #
 # List of directories that can be cleaned. "-mindepth 2" ensures