diff --git a/.travis.yml b/.travis.yml
index 17e0641..8bfb7bb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,11 +17,11 @@ script:
  - . mod.config;
    awk '/\r$$/ { exit(1); }' mod.config || (printf "Invalid mod.config format. File must be saved using unix-style (CR, not CRLF) line endings.\n"; travis_terminate 1);
    if [ "${TRAVIS_TEST_MOD}" == "True" ]; then make test || travis_terminate 1; fi;
-   if [ "${TRAVIS_TEST_PACKAGING}" == "True" ]; then ./packaging/package-all.sh test-0 || travis_terminate 1; fi
+   if [ "${TRAVIS_TEST_PACKAGING}" == "True" ]; then make check-packaging-scripts && ./packaging/package-all.sh test-0 || travis_terminate 1; fi
 
 before_deploy:
  - mkdir build
- - cd build && ../packaging/package-all.sh ${TRAVIS_TAG} ${PWD} && cd ..
+ - make check-packaging-scripts && cd build && ../packaging/package-all.sh ${TRAVIS_TAG} ${PWD} && cd ..
  - . mod.config
 
 deploy:
diff --git a/Makefile b/Makefile
index 56b5e6c..50b6d8e 100644
--- a/Makefile
+++ b/Makefile
@@ -57,6 +57,29 @@ scripts:
 		exit 1; \
 	fi
 
+check-packaging-scripts:
+	@if [ ! -x "packaging/package-all.sh" ] || [ ! -x "packaging/linux/buildpackage.sh" ] || [ ! -x "packaging/osx/buildpackage.sh" ] || [ ! -x "packaging/windows/buildpackage.sh" ]; then \
+		echo "Required SDK scripts are not executable:"; \
+		if [ ! -x "packaging/package-all.sh" ]; then \
+			echo "   packaging/package-all.sh"; \
+		fi; \
+		if [ ! -x "packaging/linux/buildpackage.sh" ]; then \
+			echo "   packaging/linux/buildpackage.sh"; \
+		fi; \
+		if [ ! -x "packaging/osx/buildpackage.sh" ]; then \
+			echo "   packaging/osx/buildpackage.sh"; \
+		fi; \
+		if [ ! -x "packaging/windows/buildpackage.sh" ]; then \
+			echo "   packaging/windows/buildpackage.sh"; \
+		fi; \
+		echo "Repair their permissions and try again."; \
+		echo "If you are using git you can repair these permissions by running"; \
+		echo "   git update-index --chmod=+x *.sh"; \
+		echo "in the directories containing the affected files"; \
+		echo "and commiting the changed files to your repository."; \
+		exit 1; \
+	fi
+
 variables:
 	@if [ -z "$(MOD_ID)" ] || [ -z "$(ENGINE_DIRECTORY)" ]; then \
 		echo "Required mod.config variables are missing:"; \
@@ -122,4 +145,4 @@ check: utility stylecheck
 
 test: utility
 	@echo "Testing $(MOD_ID) mod MiniYAML..."
-	@MOD_SEARCH_PATHS="$(MOD_SEARCH_PATHS)" mono --debug "$(ENGINE_DIRECTORY)/OpenRA.Utility.exe" $(MOD_ID) --check-yaml
\ No newline at end of file
+	@MOD_SEARCH_PATHS="$(MOD_SEARCH_PATHS)" mono --debug "$(ENGINE_DIRECTORY)/OpenRA.Utility.exe" $(MOD_ID) --check-yaml