diff --git a/src/Makefile.in b/src/Makefile.in
index 5a75a9aa2..ad2569f44 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -17,6 +17,13 @@ PYSRCS := ${wildcard *.py}
 
 PYOBJS = ${PYSRCS:.py=.pyo}
 
+# List only those modules that need the executable bit set
+EXE1 = AddMedia.py EditSource.py gramps.py gramps_main.py
+
+# Add their byte-compiled counterparts to the list...
+EXE2 = ${EXE1:.py=.pyo}
+EXES = ${EXE1} ${EXE2}
+
 all:    ${intl_libs} ${PYOBJS}
 
 intl15.so: intl.c
@@ -34,15 +41,18 @@ intl22.so: intl.c
 install:
 	${INSTALL} -d ${datadir}
 	(cd ${datadir} ;rm -f *.py *.pyo *.pyc *.glade *.xpm *.so)
-	${INSTALL} *.py *.jpg *.pyo *.png *.glade *.xpm *.so ${datadir}
+	${INSTALL} -m 644 *.py *.jpg *.pyo *.png *.glade *.xpm *.so ${datadir}
+	for i in ${EXES}; do \
+	   chmod 755 ${datadir}/$$i; \
+	   done
 	${INSTALL} -d ${prefix}/share/pixmaps
-	${INSTALL} gramps.png ${prefix}/share/pixmaps
+	${INSTALL} -m 644 gramps.png ${prefix}/share/pixmaps
 	${INSTALL} -d ${prefix}/share/gnome/apps/Applications
-	${INSTALL} gramps.desktop ${prefix}/share/gnome/apps/Applications
+	${INSTALL} -m 644 gramps.desktop ${prefix}/share/gnome/apps/Applications
 	for i in ${LANG}; do\
 		${INSTALL} -d ${prefix}/share/locale/$$i; \
 		${INSTALL} -d ${prefix}/share/locale/$$i/LC_MESSAGES; \
-		${INSTALL} locale/$$i/LC_MESSAGES/gramps.mo ${prefix}/share/locale/$$i/LC_MESSAGES; \
+		${INSTALL} -m 644 locale/$$i/LC_MESSAGES/gramps.mo ${prefix}/share/locale/$$i/LC_MESSAGES; \
 		done
 
 uninstall:
diff --git a/src/docgen/Makefile.in b/src/docgen/Makefile.in
index b8222d5a1..d214c034c 100644
--- a/src/docgen/Makefile.in
+++ b/src/docgen/Makefile.in
@@ -19,7 +19,7 @@ all: ${PYOBJS}
 
 install:
 	${INSTALL} -d ${docgen}
-	${INSTALL} *.py *.pyo ${docgen}
+	${INSTALL} -m 644 *.py *.pyo ${docgen}
 
 uninstall:
 	rm ${docgen}/*.py ${docgen}/*.pyo 
diff --git a/src/filters/Makefile.in b/src/filters/Makefile.in
index 04e469fdb..a10482e51 100644
--- a/src/filters/Makefile.in
+++ b/src/filters/Makefile.in
@@ -19,7 +19,7 @@ all: ${PYOBJS}
 
 install:
 	${INSTALL} -d ${plugins}
-	${INSTALL} *.py *.pyo *.glade ${plugins}
+	${INSTALL} -m 644 *.py *.pyo *.glade ${plugins}
 
 uninstall:
 	rm ${plugins}/*.py ${plugins}/*.pyo ${plugins}/*.glade