diff --git a/src/modules/partition/core/PartitionActions.cpp b/src/modules/partition/core/PartitionActions.cpp
index a4f2baa17..c86cf015c 100644
--- a/src/modules/partition/core/PartitionActions.cpp
+++ b/src/modules/partition/core/PartitionActions.cpp
@@ -90,7 +90,7 @@ alignBytesToBlockSize( qint64 bytes, qint64 blocksize )
     return blocks * blocksize;
 }
 
-constexpr qint64
+qint64
 bytesToSectors( qint64 bytes, qint64 blocksize )
 {
     return alignBytesToBlockSize( alignBytesToBlockSize( bytes, blocksize), MiBtoBytes(1) ) / blocksize;
diff --git a/src/modules/partition/core/PartitionActions.h b/src/modules/partition/core/PartitionActions.h
index 5acf444fa..1c543854b 100644
--- a/src/modules/partition/core/PartitionActions.h
+++ b/src/modules/partition/core/PartitionActions.h
@@ -72,6 +72,8 @@ namespace Choices
 
 }  // namespace Choices
 
+qint64 bytesToSectors( qint64 bytes, qint64 blocksize );
+
 /**
  * @brief doAutopartition sets up an autopartitioning operation on the given Device.
  * @param core a pointer to the PartitionCoreModule instance.