diff --git a/runtime/gc_modron_startup/mminit.cpp b/runtime/gc_modron_startup/mminit.cpp
index b8d53b06017..25be592fb75 100644
--- a/runtime/gc_modron_startup/mminit.cpp
+++ b/runtime/gc_modron_startup/mminit.cpp
@@ -634,8 +634,8 @@ void j9gc_jvmPhaseChange(J9VMThread *currentThread, UDATA phase)
 				}
 
 				/* Gradually learn, by averaging new values with old values - it may take a few restarts before hint converge to stable values */
-				hintDefault = (uintptr_t)MM_Math::weightedAverage((float)hintDefaultOld, (float)hintDefault, (1.0f - extensions->heapSizeStatupHintWeightNewValue));
-				hintTenure = (uintptr_t)MM_Math::weightedAverage((float)hintTenureOld, (float)hintTenure, (1.0f - extensions->heapSizeStatupHintWeightNewValue));
+				hintDefault = (uintptr_t)MM_Math::weightedAverage((float)hintDefaultOld, (float)hintDefault, (1.0f - extensions->heapSizeStartupHintWeightNewValue));
+				hintTenure = (uintptr_t)MM_Math::weightedAverage((float)hintTenureOld, (float)hintTenure, (1.0f - extensions->heapSizeStartupHintWeightNewValue));
 
 				vm->sharedClassConfig->storeGCHints(currentThread, hintDefault, hintTenure, true);
 				/* Nothing to do if store fails, storeGCHints already issues a trace point */
@@ -673,16 +673,16 @@ gcExpandHeapOnStartup(J9JavaVM *javaVM)
 				 * We deal with Tenure only if only not equal to Default (which implies it's generational)
 				 * We are a bit conservative and aim for slightly lower values that historically recorded by hints.
 				 */
-				uintptr_t hintDefaultAdjusted = (uintptr_t)(hintDefault * extensions->heapSizeStatupHintConservativeFactor);
+				uintptr_t hintDefaultAdjusted = (uintptr_t)(hintDefault * extensions->heapSizeStartupHintConservativeFactor);
 				uintptr_t defaultCurrent = defaultMemorySubSpace->getActiveMemorySize(MEMORY_TYPE_OLD | MEMORY_TYPE_NEW);
+
 				if (hintDefaultAdjusted > defaultCurrent) {
 					extensions->heap->getResizeStats()->setLastExpandReason(HINT_PREVIOUS_RUNS);
 					defaultMemorySubSpace->expand(&env, hintDefaultAdjusted - defaultCurrent);
 				}
 
-
 				if (defaultMemorySubSpace != tenureMemorySubspace) {
-					uintptr_t hintTenureAdjusted = (uintptr_t)(hintTenure * extensions->heapSizeStatupHintConservativeFactor);
+					uintptr_t hintTenureAdjusted = (uintptr_t)(hintTenure * extensions->heapSizeStartupHintConservativeFactor);
 					uintptr_t tenureCurrent = tenureMemorySubspace->getActiveMemorySize();
 
 					if (hintTenureAdjusted > tenureCurrent) {
diff --git a/runtime/gc_modron_startup/mmparseXXgc.cpp b/runtime/gc_modron_startup/mmparseXXgc.cpp
index 53ebae658a4..191d7e80511 100644
--- a/runtime/gc_modron_startup/mmparseXXgc.cpp
+++ b/runtime/gc_modron_startup/mmparseXXgc.cpp
@@ -937,9 +937,9 @@ gcParseXXgcArguments(J9JavaVM *vm, char *optArg)
 			continue;
 		}
 
-		if (try_scan(&scan_start, "heapSizeStatupHintConservativeFactor=")) {
+		if (try_scan(&scan_start, "heapSizeStartupHintConservativeFactor=")) {
 			UDATA percentage = 0;
-			if(!scan_udata_helper(vm, &scan_start, &percentage, "heapSizeStatupHintConservativeFactor=")) {
+			if(!scan_udata_helper(vm, &scan_start, &percentage, "heapSizeStartupHintConservativeFactor=")) {
 				returnValue = JNI_EINVAL;
 				break;
 			}
@@ -947,13 +947,13 @@ gcParseXXgcArguments(J9JavaVM *vm, char *optArg)
 				returnValue = JNI_EINVAL;
 				break;
 			}
-			extensions->heapSizeStatupHintConservativeFactor = ((float)percentage) / 100.0f;
+			extensions->heapSizeStartupHintConservativeFactor = ((float)percentage) / 100.0f;
 			continue ;
 		}
 
-		if (try_scan(&scan_start, "heapSizeStatupHintWeightNewValue=")) {
+		if (try_scan(&scan_start, "heapSizeStartupHintWeightNewValue=")) {
 			UDATA percentage = 0;
-			if(!scan_udata_helper(vm, &scan_start, &percentage, "heapSizeStatupHintWeightNewValue=")) {
+			if(!scan_udata_helper(vm, &scan_start, &percentage, "heapSizeStartupHintWeightNewValue=")) {
 				returnValue = JNI_EINVAL;
 				break;
 			}
@@ -961,7 +961,7 @@ gcParseXXgcArguments(J9JavaVM *vm, char *optArg)
 				returnValue = JNI_EINVAL;
 				break;
 			}
-			extensions->heapSizeStatupHintWeightNewValue = ((float)percentage) / 100.0f;
+			extensions->heapSizeStartupHintWeightNewValue = ((float)percentage) / 100.0f;
 			continue ;
 		}