diff --git a/projects/project_eod/Makefile b/projects/project_eod/Makefile
index dad25ce..2574730 100644
--- a/projects/project_eod/Makefile
+++ b/projects/project_eod/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf  data/*.mat
diff --git a/projects/project_eyetracker/Makefile b/projects/project_eyetracker/Makefile
index dad25ce..064bfc3 100644
--- a/projects/project_eyetracker/Makefile
+++ b/projects/project_eyetracker/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf data/*.mat
diff --git a/projects/project_input_resistance/Makefile b/projects/project_input_resistance/Makefile
index 3befd71..8c2681a 100644
--- a/projects/project_input_resistance/Makefile
+++ b/projects/project_input_resistance/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf data/*.mat
diff --git a/projects/project_onset_fi/Makefile b/projects/project_onset_fi/Makefile
index dad25ce..437b664 100644
--- a/projects/project_onset_fi/Makefile
+++ b/projects/project_onset_fi/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf *.dat data/*.mat
diff --git a/projects/project_photoreceptor/Makefile b/projects/project_photoreceptor/Makefile
index 2cd51bd..fd67389 100644
--- a/projects/project_photoreceptor/Makefile
+++ b/projects/project_photoreceptor/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf *.dat data/*.mat
diff --git a/projects/project_random_walk/Makefile b/projects/project_random_walk/Makefile
index dad25ce..437b664 100644
--- a/projects/project_random_walk/Makefile
+++ b/projects/project_random_walk/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf *.dat *.mat
+	zip `basename *.tex .tex`.zip *.pdf *.dat data/*.mat
diff --git a/projects/project_vector_strength/Makefile b/projects/project_vector_strength/Makefile
index 86b971c..064bfc3 100644
--- a/projects/project_vector_strength/Makefile
+++ b/projects/project_vector_strength/Makefile
@@ -7,4 +7,4 @@ clean:
 	rm -f `basename *.tex .tex`.pdf
 
 zip: latex
-	zip `basename *.tex .tex`.zip *.pdf data/*.zip
+	zip `basename *.tex .tex`.zip *.pdf data/*.mat