diff --git a/.github/workflows/stack_size.yml b/.github/workflows/stack_size.yml
index dfc17d94..de1206ad 100644
--- a/.github/workflows/stack_size.yml
+++ b/.github/workflows/stack_size.yml
@@ -62,7 +62,7 @@ jobs:
 
           read_stack() {
             STACK_INFO=$(readelf "$1" -l | grep STACK -A1)
-            MEMSZ=$(echo $STACK_INFO | tail -n1 | sed -E s/^[[:space:]]*//g | cut -f2 -d' ')
+            MEMSZ=$(echo "$STACK_INFO" | tail -n1 | sed -E s/^[[:space:]]*//g | cut -f2 -d' ')
             printf "%i" $((MEMSZ))
           }
           INITIAL_STACK=$(read_stack monerod)