diff --git a/src/analysis/processing/qgsalgorithmcellstatistics.cpp b/src/analysis/processing/qgsalgorithmcellstatistics.cpp
index 520f881d1a0..850fc891d7e 100644
--- a/src/analysis/processing/qgsalgorithmcellstatistics.cpp
+++ b/src/analysis/processing/qgsalgorithmcellstatistics.cpp
@@ -89,7 +89,7 @@ QgsCellStatisticsAlgorithm *QgsCellStatisticsAlgorithm::createInstance() const
 
 void QgsCellStatisticsAlgorithm::initAlgorithm( const QVariantMap & )
 {
-  addParameter( new QgsProcessingParameterMultipleLayers( QStringLiteral( "INPUTS" ),
+  addParameter( new QgsProcessingParameterMultipleLayers( QStringLiteral( "INPUT" ),
                 QObject::tr( "Input layers" ), QgsProcessing::TypeRaster ) );
 
   QStringList statistics = QStringList();
diff --git a/tests/src/analysis/testqgsprocessingalgs.cpp b/tests/src/analysis/testqgsprocessingalgs.cpp
index bf8ab26cf3e..2e7ce39ed90 100644
--- a/tests/src/analysis/testqgsprocessingalgs.cpp
+++ b/tests/src/analysis/testqgsprocessingalgs.cpp
@@ -2175,7 +2175,7 @@ void TestQgsProcessingAlgs::cellStatistics()
 
   QVariantMap parameters;
 
-  parameters.insert( QStringLiteral( "INPUTS" ), inputDatasetPaths );
+  parameters.insert( QStringLiteral( "INPUT" ), inputDatasetPaths );
   parameters.insert( QStringLiteral( "STATISTIC" ), statistic );
   parameters.insert( QStringLiteral( "IGNORE_NODATA" ), ignoreNoData );
   parameters.insert( QStringLiteral( "REF_LAYER" ), myDataPath + referenceLayer );