diff --git a/commands/sprofalyze/sprofalyze.c b/commands/sprofalyze/sprofalyze.c
index 5f3d04506..dcc8f1f20 100755
--- a/commands/sprofalyze/sprofalyze.c
+++ b/commands/sprofalyze/sprofalyze.c
@@ -137,7 +137,7 @@ static void usage(const char *argv0);
 #endif
 
 int main(int argc, char **argv) {
-	int opt, sprofdiff;
+	int opt, sprofdiff = 0;
 
 #ifdef DEBUG
 	/* disable buffering so the output mixes correctly */