diff --git a/src/ckdb.h b/src/ckdb.h
index 3b5c9711..f19b174a 100644
--- a/src/ckdb.h
+++ b/src/ckdb.h
@@ -51,7 +51,7 @@
 
 #define DB_VLOCK "1"
 #define DB_VERSION "1.0.5"
-#define CKDB_VERSION DB_VERSION"-1.983"
+#define CKDB_VERSION DB_VERSION"-1.984"
 
 #define WHERE_FFL " - from %s %s() line %d"
 #define WHERE_FFL_HERE __FILE__, __func__, __LINE__
diff --git a/src/ckdb_dbio.c b/src/ckdb_dbio.c
index 45e2e52d..8d707403 100644
--- a/src/ckdb_dbio.c
+++ b/src/ckdb_dbio.c
@@ -3640,6 +3640,7 @@ bool shares_add(PGconn *conn, char *workinfoid, char *username, char *workername
 	USERS *users;
 	bool ok = false;
 	char *st = NULL;
+	int errn_int;
 
 	LOGDEBUG("%s(): %s/%s/%s/%s/%ld,%ld",
 		 __func__,
@@ -3648,10 +3649,13 @@ bool shares_add(PGconn *conn, char *workinfoid, char *username, char *workername
 	FREENULL(st);
 
 	TXT_TO_DOUBLE("sdiff", sdiff, sdiff_amt);
+	TXT_TO_INT("errn", errn, errn_int);
 
 	K_WLOCK(shares_free);
 	s_item = k_unlink_head(shares_free);
-	if (share_min_sdiff > 0 && sdiff_amt >= share_min_sdiff)
+	// Don't store duplicates since they will already exist
+	if (errn_int != SE_DUPE && share_min_sdiff > 0 &&
+	    sdiff_amt >= share_min_sdiff)
 		s2_item = k_unlink_head(shares_free);
 	K_WUNLOCK(shares_free);