diff --git a/Subsurface-mobile.pro b/Subsurface-mobile.pro
index 161688f29..bc7be27ac 100644
--- a/Subsurface-mobile.pro
+++ b/Subsurface-mobile.pro
@@ -78,7 +78,7 @@ SOURCES += subsurface-mobile-main.cpp \
 	core/statistics.c \
 	core/worldmap-save.cpp \
 	core/libdivecomputer.cpp \
-	core/version.c \
+	core/version.cpp \
 	core/save-git.cpp \
 	core/datatrak.cpp \
 	core/ostctools.c \
diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 0460a7bd0..ba6eab1aa 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -195,7 +195,7 @@ set(SUBSURFACE_CORE_LIB_SRCS
 	uploadDiveShare.h
 	uploadDiveLogsDE.cpp
 	uploadDiveLogsDE.h
-	version.c
+	version.cpp
 	version.h
 	videoframeextractor.cpp
 	videoframeextractor.h
diff --git a/core/version.c b/core/version.cpp
similarity index 67%
rename from core/version.c
rename to core/version.cpp
index 9774d7b5f..bf1bcefb0 100644
--- a/core/version.c
+++ b/core/version.cpp
@@ -2,13 +2,12 @@
 #include "ssrf-version.h"
 
 // let's leave the two redundant functions in case we change our minds on git SHAs
-const char *subsurface_git_version(void)
+extern "C" const char *subsurface_git_version(void)
 {
 	return CANONICAL_VERSION_STRING_4;
 }
 
-const char *subsurface_canonical_version(void)
+extern "C" const char *subsurface_canonical_version(void)
 {
 	return CANONICAL_VERSION_STRING;
 }
-