diff --git a/src/hnsw.c b/src/hnsw.c
index acfd14f..fdd35b3 100644
--- a/src/hnsw.c
+++ b/src/hnsw.c
@@ -78,7 +78,7 @@ HnswInit(void)
 							"Valid range is 1..1000.", &hnsw_ef_search,
 							HNSW_DEFAULT_EF_SEARCH, HNSW_MIN_EF_SEARCH, HNSW_MAX_EF_SEARCH, PGC_USERSET, 0, NULL, NULL, NULL);
 
-	DefineCustomEnumVariable("hnsw.iterative_search", "Sets iterative search mode",
+	DefineCustomEnumVariable("hnsw.iterative_search", "Sets the iterative search mode",
 							 NULL, &hnsw_iterative_search,
 							 HNSW_ITERATIVE_SEARCH_OFF, hnsw_iterative_search_options, PGC_USERSET, 0, NULL, NULL, NULL);
 
diff --git a/src/ivfflat.c b/src/ivfflat.c
index 2ad27b4..4c02a5a 100644
--- a/src/ivfflat.c
+++ b/src/ivfflat.c
@@ -41,7 +41,7 @@ IvfflatInit(void)
 							"Valid range is 1..lists.", &ivfflat_probes,
 							IVFFLAT_DEFAULT_PROBES, IVFFLAT_MIN_LISTS, IVFFLAT_MAX_LISTS, PGC_USERSET, 0, NULL, NULL, NULL);
 
-	DefineCustomEnumVariable("ivfflat.iterative_search", "Sets whether to use iterative search",
+	DefineCustomEnumVariable("ivfflat.iterative_search", "Sets the iterative search mode",
 							 NULL, &ivfflat_iterative_search,
 							 IVFFLAT_ITERATIVE_SEARCH_OFF, ivfflat_iterative_search_options, PGC_USERSET, 0, NULL, NULL, NULL);