diff --git a/src/hotspot/share/gc/shared/workgroup.hpp b/src/hotspot/share/gc/shared/workgroup.hpp
index c1f21f6b6a5..ec208eb67e8 100644
--- a/src/hotspot/share/gc/shared/workgroup.hpp
+++ b/src/hotspot/share/gc/shared/workgroup.hpp
@@ -154,8 +154,6 @@ class AbstractWorkGang : public CHeapObj<mtInternal> {
   virtual uint active_workers() const {
     assert(_active_workers <= _total_workers,
            "_active_workers: %u > _total_workers: %u", _active_workers, _total_workers);
-    assert(UseDynamicNumberOfGCThreads || _active_workers == _total_workers,
-           "Unless dynamic should use total workers");
     return _active_workers;
   }
 
diff --git a/src/hotspot/share/gc/z/zArguments.cpp b/src/hotspot/share/gc/z/zArguments.cpp
index 0e2df88c4a1..7ab150c079d 100644
--- a/src/hotspot/share/gc/z/zArguments.cpp
+++ b/src/hotspot/share/gc/z/zArguments.cpp
@@ -76,9 +76,6 @@ void ZArguments::initialize() {
   }
 #endif
 
-  // To avoid asserts in set_active_workers()
-  FLAG_SET_DEFAULT(UseDynamicNumberOfGCThreads, true);
-
   // CompressedOops/UseCompressedClassPointers not supported
   FLAG_SET_DEFAULT(UseCompressedOops, false);
   FLAG_SET_DEFAULT(UseCompressedClassPointers, false);