diff --git a/ifs_samples/grib1/CMakeLists.txt b/ifs_samples/grib1/CMakeLists.txt
index b8de44d61..22bebd739 100644
--- a/ifs_samples/grib1/CMakeLists.txt
+++ b/ifs_samples/grib1/CMakeLists.txt
@@ -7,9 +7,13 @@ list( APPEND ifs_samples_${_basedir}
       sh_sfc.tmpl
 )
 
-install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}  
+install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
          DESTINATION ${CMAKE_INSTALL_PREFIX}/${ECCODES_IFS_SAMPLES_SUFF}/${_basedir}
          PERMISSIONS OWNER_WRITE OWNER_READ GROUP_READ WORLD_READ )
 
 file( COPY ${ifs_samples_${_basedir}}
       DESTINATION ${CMAKE_BINARY_DIR}/${ECCODES_IFS_SAMPLES_SUFF}/${_basedir} )
+
+# Also copy the ifs sample files to the build dir (for developer mode)
+file( COPY ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
+      DESTINATION ${CMAKE_CURRENT_BINARY_DIR} )
diff --git a/ifs_samples/grib1_mlgrib2/CMakeLists.txt b/ifs_samples/grib1_mlgrib2/CMakeLists.txt
index 8f250df15..318700543 100644
--- a/ifs_samples/grib1_mlgrib2/CMakeLists.txt
+++ b/ifs_samples/grib1_mlgrib2/CMakeLists.txt
@@ -13,3 +13,7 @@ install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
 
 file( COPY ${ifs_samples_${_basedir}}
       DESTINATION ${CMAKE_BINARY_DIR}/${ECCODES_IFS_SAMPLES_SUFF}/${_basedir} )
+
+# Also copy the ifs sample files to the build dir (for developer mode)
+file( COPY ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
+      DESTINATION ${CMAKE_CURRENT_BINARY_DIR} )
diff --git a/ifs_samples/grib1_mlgrib2_ieee32/CMakeLists.txt b/ifs_samples/grib1_mlgrib2_ieee32/CMakeLists.txt
index 87e01f1c6..500f3d497 100644
--- a/ifs_samples/grib1_mlgrib2_ieee32/CMakeLists.txt
+++ b/ifs_samples/grib1_mlgrib2_ieee32/CMakeLists.txt
@@ -7,9 +7,13 @@ list( APPEND ifs_samples_${_basedir}
       sh_sfc.tmpl
 )
 
-install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}  
+install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
          DESTINATION ${ECCODES_IFS_SAMPLES_PATH}/${_basedir}
          PERMISSIONS OWNER_WRITE OWNER_READ GROUP_READ WORLD_READ )
 
 file( COPY ${ifs_samples_${_basedir}}
       DESTINATION ${CMAKE_BINARY_DIR}/share/${PROJECT_NAME}/ifs_samples/${_basedir} )
+
+# Also copy the ifs sample files to the build dir (for developer mode)
+file( COPY ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
+      DESTINATION ${CMAKE_CURRENT_BINARY_DIR} )
diff --git a/ifs_samples/grib1_mlgrib2_ieee64/CMakeLists.txt b/ifs_samples/grib1_mlgrib2_ieee64/CMakeLists.txt
index df8ec7382..b3dee95ea 100644
--- a/ifs_samples/grib1_mlgrib2_ieee64/CMakeLists.txt
+++ b/ifs_samples/grib1_mlgrib2_ieee64/CMakeLists.txt
@@ -7,9 +7,13 @@ list( APPEND ifs_samples_${_basedir}
       sh_sfc.tmpl
 )
 
-install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}  
+install( FILES ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
          DESTINATION ${CMAKE_INSTALL_PREFIX}/${ECCODES_IFS_SAMPLES_SUFF}/${_basedir}
          PERMISSIONS OWNER_WRITE OWNER_READ GROUP_READ WORLD_READ )
 
 file( COPY ${ifs_samples_${_basedir}}
       DESTINATION ${CMAKE_BINARY_DIR}/${ECCODES_IFS_SAMPLES_SUFF}/${_basedir} )
+
+# Also copy the ifs sample files to the build dir (for developer mode)
+file( COPY ${ECCODES_SAMPLES_FILES} ${ifs_samples_${_basedir}}
+      DESTINATION ${CMAKE_CURRENT_BINARY_DIR} )