diff --git a/commands/datasizes/datasizes.sh b/commands/datasizes/datasizes.sh
index e85661998..fa97833c5 100644
--- a/commands/datasizes/datasizes.sh
+++ b/commands/datasizes/datasizes.sh
@@ -5,4 +5,10 @@ then	echo "Usage: $0 <executable>"
 	exit 1
 fi
 
-nm -d -n $1 | grep ' [bBdD] ' | awk '{  printf "%10ld kB  %s\n", ($1-lastpos)/1024, lastname; lastpos=$1; lastname=$3 }' | sort -n
+if file $1 | grep NSYM >/dev/null 2>&1; then
+  NM="gnm --radix=d"
+else
+  NM="nm -d"
+fi
+
+$NM -n $1 | grep ' [bBdD] [^.]' | awk '{ if (lastpos) printf "%10ld kB  %s\n", ($1-lastpos)/1024, lastname; lastpos=$1; lastname=$3 }' | sort -n