diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 8743eaa00..f0d92f3e2 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -3,6 +3,7 @@
 
 - (#80)[https://github.com/IAMconsortium/pyam/pull/80] Extend the pseudo-regexp syntax for filtering in `pattern_match()`
 - (#73)[https://github.com/IAMconsortium/pyam/pull/73] Adds ability to remove labels for markers, colors, or linestyles
+- (#72)[https://github.com/IAMconsortium/pyam/pull/72] line_plot now drops NaNs so that lines are fully plotted
 - (#71)[https://github.com/IAMconsortium/pyam/pull/71] Line plots `legend` keyword can now be a dictionary of legend arguments
 - (#70)[https://github.com/IAMconsortium/pyam/pull/70] Support reading of both SSP and RCP data files downloaded from the IIASA database.
 - (#66)[https://github.com/IAMconsortium/pyam/pull/66] Fixes a bug in the `interpolate()` function (duplication of data points if already defined)
diff --git a/pyam/plotting.py b/pyam/plotting.py
index 07cfeb125..c159cdfb5 100644
--- a/pyam/plotting.py
+++ b/pyam/plotting.py
@@ -544,6 +544,7 @@ def line_plot(df, x='year', y='value', ax=None, legend=None, title=True,
             else:
                 pargs[key] = var
         kwargs.update(pargs)
+        data = data.dropna()
         data.plot(ax=ax, **kwargs)
         if labels:
             ax.lines[-1].set_label(' '.join(labels))