diff --git a/tools/quartus/quartus_generic.sh b/tools/quartus/quartus_generic.sh
index aa236c6e06ed75625c2670614ce35e1c1efd20a5..7aa63396175fc65287724770c1ca9ce9678d5228 100755
--- a/tools/quartus/quartus_generic.sh
+++ b/tools/quartus/quartus_generic.sh
@@ -40,6 +40,9 @@ ${NIOSDIR}/bin:\
 ${NIOSDIR}/bin/gnu/H-i686-pc-linux-gnu/bin:\
 ${NIOSDIR}/sdk2/bin
 
+# Qsys
+export ALTERA_HW_TCL_KEEP_TEMP_FILES=1
+
 # User synthesis timestamp in FPGA image
 export UNB_COMPILE_STAMPS=1