diff --git a/src/cc65/coptadd.c b/src/cc65/coptadd.c
index c27197ad2..e589e02ab 100644
--- a/src/cc65/coptadd.c
+++ b/src/cc65/coptadd.c
@@ -309,14 +309,14 @@ unsigned OptAdd3 (CodeSeg* S)
     unsigned I = 0;
     while (I < CS_GetEntryCount (S)) {
 
-	CodeEntry* L[4];
+	CodeEntry* L[5];
 
       	/* Get next entry */
        	L[0] = CS_GetEntry (S, I);
 
      	/* Check for the sequence */
         if (CE_IsCallTo (L[0], "pushax")                        &&
-       	    CS_GetEntries (S, L+1, I+1, 3)                      &&
+       	    CS_GetEntries (S, L+1, I+1, 5)                      &&
             !CS_RangeHasLabel (S, I+1, 3)                       &&
             L[1]->OPC == OP65_LDX                               &&
             CE_IsKnownImm (L[1], 0)                             &&