diff --git a/apps/eq.c b/apps/eq.c
index 6e3e1e2126..8fb065aa09 100644
--- a/apps/eq.c
+++ b/apps/eq.c
@@ -102,7 +102,7 @@ static const unsigned long atan_table[] = {
  *         representing -1 and 1 respectively. 
  */
 long fsincos(unsigned long phase, long *cos) {
-    long x, x1, y, y1;
+    int32_t x, x1, y, y1;
     unsigned long z, z1;
     int i;