diff --git a/src/eval.c b/src/eval.c
index 89a77f8..1c4f60e 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -19720,6 +19720,7 @@
 			    list_func_head(fp, FALSE);
 		    }
 		}
+		vim_free(regmatch.regprog);
 	    }
 	}
 	if (*p == '/')