diff --git a/libsrc/common/raise.s b/libsrc/common/raise.s
index 753def8a8..db96cdcd0 100644
--- a/libsrc/common/raise.s
+++ b/libsrc/common/raise.s
@@ -28,6 +28,15 @@ _raise:
         sta     jmpvec+1
         lda     sigtable+1,x
         sta     jmpvec+2
+                            
+; Reset the signal handler to SIG_DFL (I don't like this because it may
+; introduce race conditions, but it's the simplest way to satisfy the 
+; standard).
+
+        lda     #<__sig_dfl
+        sta     sigtable,x
+        lda     #>__sig_dfl
+        sta     sigtable+1,x
 
 ; Restore the signal number and call the function
 
@@ -42,3 +51,4 @@ _raise:
 invalidsig:
         rts
 
+